BUILT TO ENDURE THE UNENDURABLE

Trapped by the frozen sea, but not by fear, Sir Ernest Shackleton led his stranded crew for almost two antarctic years. As his leadership, courage and optimism continue to captivate explorers around the world, we’re proud to introduce our second series inspired by his legacy. The 41mm Engineer III Endurance 1917 GMT features our Manufacture GMT Caliber RRM7337-C – a true GMT chronometer – wrapped in a 904L stainless steel case and shining with micro gas tube luminosity. Three complementary models are also available, each designed with unique features yet united by incomparable brightness and high-quality build.

PROLONGED DARKNESS. PERSISTANT BRIGHTNESS.

Sometimes there is no escaping the darkness. Gear up with micro gas tube luminosity and persevere with a bright, unwavering ally. On the GMT model, the 24-hour inner bezel features our revolutionary tubes for reading the home time in total darkness. The all-around glow extends to all four hands – even the GMT hand – and around the dial with fully illuminated hour markers. No matter which model you choose, you’ll have automatic micro gas tubes that break through the black expanse.

MANUFACTURE GMT CALIBER.

Fully automatic and highly accurate, the BALL Manufacture GMT Caliber RRM7337-C is an officially certified chronometer. With true GMT status, its quick-set functionality lets you easily change the local 12-hour hand by using the crown. The GMT hand is completely unaffected while the seconds hands continues to move – giving you uninterrupted precision. As the 12-hour hand jumps in one-hour increments, the date wheel moves in perfect synchronization and always indicates the correct date of your local time zone. The movement and all its smart functionality are shielded by 1,000 Gauss anti-magnetic protective technology.

41MM OF IMMEASURABLE STRENGTH.

The most fitting word to describe 904L stainless steel: extreme. Featuring extra amounts of chromium, molybdenum, nickel and copper, 904L steel provides superior resistance to corrosion, rust and acids, along with unique hardness that allows it to withstand unexpected conditions and extreme environments. At 41mm in diameter and just 13.15mm thick, the 904L case of the GMT model is comfortable enough for everyday wear and tough enough for adventure anywhere.

SPECIFICATIONS

• Limited Edition: 1000
  
• Movement:
  • Automatic BALL Manufacture caliber RRM7337-C
    
  • Chronometer certified COSC
    
  • Special movement oil to endure -45°C / -49°F
    
• Functions:
  
  • Quick set local 12-hour hand
    
  • Second time zone indication illuminated with micro gas tubes
    
  • Hours, minutes, sweep second and magnified date
    
• Water Resistance: 100m/330ft
  
• Anti-Magnetism: 1,000 Gauss (80,000 A/m)
  
• Shock Resistance: 5,000Gs shock resistance
  
• Micro gas tubes: 39 micro gas tubes on hour, minute, second and GMT hands, dial for night reading capability
  
• Dial Color: Blue
  
• Bracelet: 904L stainless steel bracelet
  
• Size (case): 
  • Ø 41mm
  • Height: 13.15mm
    
• Weight: Approx. 180g
  
• Case Material:
  • 904L stainless steel
    
  • Mu-metal shield
  • Amortiser® patented anti-shock system
    
• Crystal: Anti-reflective sapphire crystal
  
• Crown: Screwed-in crown
  
• Lug Width: 20mm
  
• Lug to lug: Approx. 47.6mm

BUILT TO ENDURE THE UNENDURABLE

Trapped by the frozen sea, but not by fear, Sir Ernest Shackleton led his stranded crew for almost two antarctic years. As his leadership, courage and optimism continue to captivate explorers around the world, we’re proud to introduce our second series inspired by his legacy. The 41mm Engineer III Endurance 1917 GMT features our Manufacture GMT Caliber RRM7337-C – a true GMT chronometer – wrapped in a 904L stainless steel case and shining with micro gas tube luminosity. Three complementary models are also available, each designed with unique features yet united by incomparable brightness and high-quality build.

PROLONGED DARKNESS. PERSISTANT BRIGHTNESS.

Sometimes there is no escaping the darkness. Gear up with micro gas tube luminosity and persevere with a bright, unwavering ally. On the GMT model, the 24-hour inner bezel features our revolutionary tubes for reading the home time in total darkness. The all-around glow extends to all four hands – even the GMT hand – and around the dial with fully illuminated hour markers. No matter which model you choose, you’ll have automatic micro gas tubes that break through the black expanse.

MANUFACTURE GMT CALIBER.

Fully automatic and highly accurate, the BALL Manufacture GMT Caliber RRM7337-C is an officially certified chronometer. With true GMT status, its quick-set functionality lets you easily change the local 12-hour hand by using the crown. The GMT hand is completely unaffected while the seconds hands continues to move – giving you uninterrupted precision. As the 12-hour hand jumps in one-hour increments, the date wheel moves in perfect synchronization and always indicates the correct date of your local time zone. The movement and all its smart functionality are shielded by 1,000 Gauss anti-magnetic protective technology.

41MM OF IMMEASURABLE STRENGTH.

The most fitting word to describe 904L stainless steel: extreme. Featuring extra amounts of chromium, molybdenum, nickel and copper, 904L steel provides superior resistance to corrosion, rust and acids, along with unique hardness that allows it to withstand unexpected conditions and extreme environments. At 41mm in diameter and just 13.15mm thick, the 904L case of the GMT model is comfortable enough for everyday wear and tough enough for adventure anywhere.

SPECIFICATIONS

• Limited Edition: 1000
  
• Movement:
  • Automatic BALL Manufacture caliber RRM7337-C
    
  • Chronometer certified COSC
    
  • Special movement oil to endure -45°C / -49°F
    
• Functions:
  
  • Quick set local 12-hour hand
    
  • Second time zone indication illuminated with micro gas tubes
    
  • Hours, minutes, sweep second and magnified date
    
• Water Resistance: 100m/330ft
  
• Anti-Magnetism: 1,000 Gauss (80,000 A/m)
  
• Shock Resistance: 5,000Gs shock resistance
  
• Micro gas tubes: 39 micro gas tubes on hour, minute, second and GMT hands, dial for night reading capability
  
• Dial Color: Blue
  
• Bracelet: 904L stainless steel bracelet
  
• Size (case): 
  • Ø 41mm
  • Height: 13.15mm
    
• Weight: Approx. 180g
  
• Case Material:
  • 904L stainless steel
    
  • Mu-metal shield
  • Amortiser® patented anti-shock system
    
• Crystal: Anti-reflective sapphire crystal
  
• Crown: Screwed-in crown
  
• Lug Width: 20mm
  
• Lug to lug: Approx. 47.6mm

BUILT TO ENDURE THE UNENDURABLE

Trapped by the frozen sea, but not by fear, Sir Ernest Shackleton led his stranded crew for almost two antarctic years. As his leadership, courage and optimism continue to captivate explorers around the world, we’re proud to introduce our second series inspired by his legacy. The 41mm Engineer III Endurance 1917 GMT features our Manufacture GMT Caliber RRM7337-C – a true GMT chronometer – wrapped in a 904L stainless steel case and shining with micro gas tube luminosity. Three complementary models are also available, each designed with unique features yet united by incomparable brightness and high-quality build.

PROLONGED DARKNESS. PERSISTANT BRIGHTNESS.

Sometimes there is no escaping the darkness. Gear up with micro gas tube luminosity and persevere with a bright, unwavering ally. On the GMT model, the 24-hour inner bezel features our revolutionary tubes for reading the home time in total darkness. The all-around glow extends to all four hands – even the GMT hand – and around the dial with fully illuminated hour markers. No matter which model you choose, you’ll have automatic micro gas tubes that break through the black expanse.

MANUFACTURE GMT CALIBER.

Fully automatic and highly accurate, the BALL Manufacture GMT Caliber RRM7337-C is an officially certified chronometer. With true GMT status, its quick-set functionality lets you easily change the local 12-hour hand by using the crown. The GMT hand is completely unaffected while the seconds hands continues to move – giving you uninterrupted precision. As the 12-hour hand jumps in one-hour increments, the date wheel moves in perfect synchronization and always indicates the correct date of your local time zone. The movement and all its smart functionality are shielded by 1,000 Gauss anti-magnetic protective technology.

41MM OF IMMEASURABLE STRENGTH.

The most fitting word to describe 904L stainless steel: extreme. Featuring extra amounts of chromium, molybdenum, nickel and copper, 904L steel provides superior resistance to corrosion, rust and acids, along with unique hardness that allows it to withstand unexpected conditions and extreme environments. At 41mm in diameter and just 13.15mm thick, the 904L case of the GMT model is comfortable enough for everyday wear and tough enough for adventure anywhere.

SPECIFICATIONS

• Limited Edition: 1000
  
• Movement:
  • Automatic BALL Manufacture caliber RRM7337-C
    
  • Chronometer certified COSC
    
  • Special movement oil to endure -45°C / -49°F
    
• Functions:
  
  • Quick set local 12-hour hand
    
  • Second time zone indication illuminated with micro gas tubes
    
  • Hours, minutes, sweep second and magnified date
    
• Water Resistance: 100m/330ft
  
• Anti-Magnetism: 1,000 Gauss (80,000 A/m)
  
• Shock Resistance: 5,000Gs shock resistance
  
• Micro gas tubes: 39 micro gas tubes on hour, minute, second and GMT hands, dial for night reading capability
  
• Dial Color: Grey
  
• Bracelet: 904L stainless steel bracelet
  
• Size (case): 
  • Ø 41mm
  • Height: 13.15mm
    
• Weight: Approx. 180g
  
• Case Material:
  • 904L stainless steel
    
  • Mu-metal shield
  • Amortiser® patented anti-shock system
    
• Crystal: Anti-reflective sapphire crystal
  
• Crown: Screwed-in crown
  
• Lug Width: 20mm
  
• Lug to lug: Approx. 47.6mm

BUILT TO ENDURE THE UNENDURABLE

Trapped by the frozen sea, but not by fear, Sir Ernest Shackleton led his stranded crew for almost two antarctic years. As his leadership, courage and optimism continue to captivate explorers around the world, we’re proud to introduce our second series inspired by his legacy. The 41mm Engineer III Endurance 1917 GMT features our Manufacture GMT Caliber RRM7337-C – a true GMT chronometer – wrapped in a 904L stainless steel case and shining with micro gas tube luminosity. Three complementary models are also available, each designed with unique features yet united by incomparable brightness and high-quality build.

PROLONGED DARKNESS. PERSISTANT BRIGHTNESS.

Sometimes there is no escaping the darkness. Gear up with micro gas tube luminosity and persevere with a bright, unwavering ally. On the GMT model, the 24-hour inner bezel features our revolutionary tubes for reading the home time in total darkness. The all-around glow extends to all four hands – even the GMT hand – and around the dial with fully illuminated hour markers. No matter which model you choose, you’ll have automatic micro gas tubes that break through the black expanse.

MANUFACTURE GMT CALIBER.

Fully automatic and highly accurate, the BALL Manufacture GMT Caliber RRM7337-C is an officially certified chronometer. With true GMT status, its quick-set functionality lets you easily change the local 12-hour hand by using the crown. The GMT hand is completely unaffected while the seconds hands continues to move – giving you uninterrupted precision. As the 12-hour hand jumps in one-hour increments, the date wheel moves in perfect synchronization and always indicates the correct date of your local time zone. The movement and all its smart functionality are shielded by 1,000 Gauss anti-magnetic protective technology.

41MM OF IMMEASURABLE STRENGTH.

The most fitting word to describe 904L stainless steel: extreme. Featuring extra amounts of chromium, molybdenum, nickel and copper, 904L steel provides superior resistance to corrosion, rust and acids, along with unique hardness that allows it to withstand unexpected conditions and extreme environments. At 41mm in diameter and just 13.15mm thick, the 904L case of the GMT model is comfortable enough for everyday wear and tough enough for adventure anywhere.

SPECIFICATIONS

• Limited Edition: 1000
  
• Movement:
  • Automatic BALL Manufacture caliber RRM7337-C
    
  • Chronometer certified COSC
    
  • Special movement oil to endure -45°C / -49°F
    
• Functions:
  
  • Quick set local 12-hour hand
    
  • Second time zone indication illuminated with micro gas tubes
    
  • Hours, minutes, sweep second and magnified date
    
• Water Resistance: 100m/330ft
  
• Anti-Magnetism: 1,000 Gauss (80,000 A/m)
  
• Shock Resistance: 5,000Gs shock resistance
  
• Micro gas tubes: 39 micro gas tubes on hour, minute, second and GMT hands, dial for night reading capability
  
• Dial Color: Grey
  
• Bracelet: 904L stainless steel bracelet
  
• Size (case): 
  • Ø 41mm,
  • Height: 13.15mm
    
• Weight: Approx. 180g
  
• Case Material: 
  • 904L stainless steel
    
  • Mu-metal shield
  • Amortiser® patented anti-shock system
    
• Crystal: Anti-reflective sapphire crystal
  
• Crown: Screwed-in crown
  
• Lug Width: 20mm
  
• Lug to lug: Approx. 47.6mm

Seiko Presage commemorates Seiko’s 145th anniversary with a new timepiece inspired by the Timekeeper.

Presage unveils a new limited-edition model whose gold-colored accents express Seiko’s enduring commitment to enriching lives with joy and beauty.

The watch features an onion crown. The bezel, which is adorned with intricate and dimensional detailing, echoes the silhouette of the historical timepiece. And like the Timekeeper, the Presage creation features a dial in smooth white enamel. Marked with slender Roman numerals, it evokes old-world charm while ensuring high legibility. The box-shaped glass, another vintage-inspired feature, provides the design with a rich depth.

The new timepiece also features movable lugs and a pull-through leather strap sourced from Leather Working Group-certified tanneries*.

*Leather Working Group
The Leather Working Group (LWG) is a non-profit organization dedicated to responsibly made, sustainable leather production. Seiko, a member of LWG, aims to increase its percentage of leather straps made with leather produced by LWG-certified tanneries to over 90% in the future.

Specifications

Movement

• Caliber Number: 6R51
• Movement Type: Automatic with manual winding
• Precision: +25 to -15 seconds per day
• Power reserve: Approx. 72 hours(3 days)
• Jewels: 24
• Functions:
  
  • Stop second hand function
    

Case/Band

• Case Material: Stainless steel
  
• Case Size:
  
  • Thickness: 12.3mm
    
  • Diameter: 35.0mm
    
  • Lug-to-lug: 37.0mm
    
• Crystal: Box shaped sapphire crystal
  
• Crystal Coating: Anti-reflective coating on inner surface
  
• Band Material: Cow leather
• Distance between lugs: 11

Other Details

• Water Resistance: 5 bar
  
• Magnetic Resistance: 4,800 A/m
  
• Weight: 60.0g
• Features:
  
  • LIMITED EDITION on the case back
    
  • Serial number engraved on the case back
    
  • Enamel dial
  • Screw case back
    

In celebration of Seiko’s 145th anniversary, a special limited-edition model tracing Seiko’s legacy is now available.

In 2026, Seiko will celebrate its 145th anniversary. Since its founding in 1881, the company has viewed watches as a potential solution to social challenges, consistently pursuing innovation while upholding founder Kintaro Hattori's philosophy to be “always one step ahead of the rest."

This new GPS Solar Dual-Time Chronograph celebrates Astron's spirit of innovation. Symbolizing success and prosperity, gold-colored accents grace every part of the watch, from the dial and bracelet to the case.

The bezel features a gold-colored sapphire crystal insert that adds depth and dimension. Even the gold-colored markings at 1, 4, and 5 on the UTC scale offer a subtle tribute to the 145th anniversary.

Specifications

Movement

• Caliber Number: 5X83
• Movement Type: GPS solar
• Precision: ±15 seconds per month (without receiving a GPS signal and at temperatures between 5°C and 35°C )
• Power reserve: Operating for approx. 6 months (when fully charged), power save: approx. 2 years
• Jewels: 14
• Functions:
  
  • Overcharge prevention function
    
  • Power save function
    
  • Chronograph up to 12 hours in 1/20 second increments
    
  • Perpetual calendar to the february 28, 2100
    
  • World time function (38 cities)
    
  • Dual-time function
    
  • Day display
    
  • Power reserve indicator
    
  • Time transfer function (Switching between the main-dial and sub-dial)
    
  • GPS signal reception function (Time zone adjustment, automatic time adjustment, manual time adjustment)
    
  • Satellite acquisition status display function
    
  • Reception result display function
    
  • DST (Daylight Saving Time)
    
  • Function to prevent the GPS signal reception (in-flight mode)
    
  • Automatic hand position alignment function
    

Case/Band

• Case Material: Titanium (super-hard coating)
  
• Case Size:
  
  • Thickness: 14.4mm
    
  • Diameter: 44.1mm
    
  • Lug-to-lug: 50.0mm
    
• Crystal: Dual-curved sapphire crystal
  
• Crystal Coating: Super-clear coating
  
• Clasp: Three-fold clasp with push button release
  
• Bracelet Length: 190.0
  
• Distance between lugs: 14

Other Details

• Water Resistance: 10 bar
  
• Magnetic Resistance: 4,800 A/m
  
• Features:
  
  • LIMITED EDITION on the case back
    
  • Serial number engraved on the case back
    
  • Against an allergic reaction to nickel
    
  • Clasp with Smart Adjuster function
    
  • Screw case back

Basic Information

• Case size (L× W× H): 49.3 × 43.6 × 13 mm
• Weight: 172 g
• Case and bezel material: Stainless steel
• Band:
  • Solid stainless steel band
  • One-touch 3-fold Clasp
• Construction: Shock Resistant
• Water resistance: 200-meter water resistance
• Power supply and battery life: Tough Solar (Solar powered)
• Time adjustment:
  • Radio-controlled Watch; Multi band 6
  • Bluetooth: Connects to a smartphone and automatically adjusts the time

Smartphone Link/App Connectivity Features

• Smartphone Link feature: Mobile link (Wireless linking using Bluetooth®)
• Apps: CASIO WATCHES
• App connectivity feature: 
  • Auto time adjustment
  • Easy watch setting
  • Approximately 300 world time cities + user-added point
  • Time & place
  • Phone finder

Exterior

• Glass: Mineral Glass
• Back plate: Screw Lock Back
• Compatible band size: 150 to 205 mm
  
• Surface treatment:
  
  • Gold ion plated bezel
    
  • Gold ion plated band

Watch Features

World Time

• 2 World time
• 38 time zones (55 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping

Stopwatch

• 1/100-second stopwatch
• Measuring capacity:
  • 00'00''00~59'59''99 (for the first 60 minutes) 
  • 1:00'00~23:59'59 (after 60 minutes)
• Measuring Unit: 
  • 1/100 second (for the first 60 minutes)
  • 1 second (after 60 minutes)
• Measuring modes:
  • Elapsed time,
  • Split time
  • 1st-2nd place times

Timer

• Countdown timer
  
• Measuring unit: 1 second
• Countdown range: 24 hours
• Countdown start time setting range: 1 second to 24 hours (1-second increments)
  

Alarm / Hourly Time Signal

• 5 daily alarms (with 1 snooze alarm)
• Hourly time signal

Light

• LED backlight
• Full auto light, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
• LED: White

Calendar

• Full auto-calendar (to year 2099)
  

Mute feature

• Button operation tone on/off
  

Energy Saving Feature

• Power Saving (display goes blank to save power when the watch is left in the dark)

Battery Display/Alert

• Low battery alert

Other Features

• 12/24-hour format
• Date/month display swapping
• Regular timekeeping:
• Hour, minute, second, pm, month, date, day Memory in Pixel (MIP) LCD

Time Adjustment Details

• Time calibration signal reception
  
• Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful)
  
• *5 times a day for the Chinese calibration signal
  
• Manual receive
  
• The latest signal reception results
  
• Time Calibration Signals
  
• Station Name: DCF77 (Mainflingen, Germany)
  
• Frequency: 77.5 kHz
  
• Station Name: MSF (Anthorn, England)
  
• Frequency: 60.0 kHz
  
• Station Name: WWVB (Fort Collins, United States)
  
• Frequency: 60.0 kHz
  
• Station Name: JJY (Fukushima, Fukuoka/Saga, Japan)
  
• Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga)
  
• Station Name: BPC (Shangqiu City, Henan Province, China)
  
• Frequency: 68.5 kHz

Basic Information

• Case size (L× W× H): 49.3 × 43.6 × 13 mm
• Weight: 172 g
• Case and bezel material: Stainless steel
• Band:
  • Solid stainless steel band
  • One-touch 3-fold Clasp
• Construction: Shock Resistant
• Water resistance: 200-meter water resistance
• Power supply and battery life: Tough Solar (Solar powered)
• Time adjustment:
  • Radio-controlled Watch; Multi band 6
  • Bluetooth: Connects to a smartphone and automatically adjusts the time

Smartphone Link/App Connectivity Features

• Smartphone Link feature: Mobile link (Wireless linking using Bluetooth®)
• Apps: CASIO WATCHES
• App connectivity feature: 
  • Auto time adjustment
  • Easy watch setting
  • Approximately 300 world time cities + user-added point
  • Time & place
  • Phone finder

Exterior

• Glass: Mineral Glass
• Back plate: Screw Lock Back
• Compatible band size: 150 to 205 mm

Watch Features

World Time

• 2 World time
• 38 time zones (55 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping

Stopwatch

• 1/100-second stopwatch
• Measuring capacity:
  • 00'00''00~59'59''99 (for the first 60 minutes) 
  • 1:00'00~23:59'59 (after 60 minutes)
• Measuring Unit: 
  • 1/100 second (for the first 60 minutes)
  • 1 second (after 60 minutes)
• Measuring modes:
  • Elapsed time,
  • Split time
  • 1st-2nd place times

Timer

• Countdown timer
  
• Measuring unit: 1 second
• Countdown range: 24 hours
• Countdown start time setting range: 1 second to 24 hours (1-second increments)
  

Alarm / Hourly Time Signal

• 5 daily alarms (with 1 snooze alarm)
• Hourly time signal

Light

• LED backlight
• Full auto light, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
• LED: White

Calendar

• Full auto-calendar (to year 2099)
  

Mute feature

• Button operation tone on/off
  

Energy Saving Feature

• Power Saving (display goes blank to save power when the watch is left in the dark)

Battery Display/Alert

• Low battery alert

Other Features

• 12/24-hour format
• Date/month display swapping
• Regular timekeeping:
• Hour, minute, second, pm, month, date, day Memory in Pixel (MIP) LCD

Time Adjustment Details

• Time calibration signal reception
  
• Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful)
  
• *5 times a day for the Chinese calibration signal
  
• Manual receive
  
• The latest signal reception results
  
• Time Calibration Signals
  
• Station Name: DCF77 (Mainflingen, Germany)
  
• Frequency: 77.5 kHz
  
• Station Name: MSF (Anthorn, England)
  
• Frequency: 60.0 kHz
  
• Station Name: WWVB (Fort Collins, United States)
  
• Frequency: 60.0 kHz
  
• Station Name: JJY (Fukushima, Fukuoka/Saga, Japan)
  
• Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga)
  
• Station Name: BPC (Shangqiu City, Henan Province, China)
  
• Frequency: 68.5 kHz

Basic Information

• Case size (L× W× H): 49.3 × 43.6 × 13 mm
• Weight: 172 g
• Case and bezel material: Stainless steel
• Band:
  • Solid stainless steel band
  • One-touch 3-fold Clasp
• Construction: Shock Resistant
• Water resistance: 200-meter water resistance
• Power supply and battery life: Tough Solar (Solar powered)
• Time adjustment:
  • Radio-controlled Watch; Multi band 6
  • Bluetooth: Connects to a smartphone and automatically adjusts the time

Smartphone Link/App Connectivity Features

• Smartphone Link feature: Mobile link (Wireless linking using Bluetooth®)
• Apps: CASIO WATCHES
• App connectivity feature: 
  • Auto time adjustment
  • Easy watch setting
  • Approximately 300 world time cities + user-added point
  • Time & place
  • Phone finder

Exterior

• Glass: Mineral Glass
• Back plate: Screw Lock Back
• Surface treatment:
  • Black ion plated bezel
  • Black ion plated band
• Compatible band size: 150 to 205 mm

Watch Features

World Time

• 2 World time
• 38 time zones (55 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping

Stopwatch

• 1/100-second stopwatch
• Measuring capacity:
  • 00'00''00~59'59''99 (for the first 60 minutes) 
  • 1:00'00~23:59'59 (after 60 minutes)
• Measuring Unit: 
  • 1/100 second (for the first 60 minutes)
  • 1 second (after 60 minutes)
• Measuring modes:
  • Elapsed time,
  • Split time
  • 1st-2nd place times

Timer

• Countdown timer
  
• Measuring unit: 1 second
• Countdown range: 24 hours
• Countdown start time setting range: 1 second to 24 hours (1-second increments)
  

Alarm / Hourly Time Signal

• 5 daily alarms (with 1 snooze alarm)
• Hourly time signal

Light

• LED backlight
• Full auto light, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
• LED: White

Calendar

• Full auto-calendar (to year 2099)
  

Mute feature

• Button operation tone on/off
  

Energy Saving Feature

• Power Saving (display goes blank to save power when the watch is left in the dark)

Battery Display/Alert

• Low battery alert

Other Features

• 12/24-hour format
• Date/month display swapping
• Regular timekeeping:
• Hour, minute, second, pm, month, date, day Memory in Pixel (MIP) LCD

Time Adjustment Details

• Time calibration signal reception
  
• Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful)
  
• *5 times a day for the Chinese calibration signal
  
• Manual receive
  
• The latest signal reception results
  
• Time Calibration Signals
  
• Station Name: DCF77 (Mainflingen, Germany)
  
• Frequency: 77.5 kHz
  
• Station Name: MSF (Anthorn, England)
  
• Frequency: 60.0 kHz
  
• Station Name: WWVB (Fort Collins, United States)
  
• Frequency: 60.0 kHz
  
• Station Name: JJY (Fukushima, Fukuoka/Saga, Japan)
  
• Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga)
  
• Station Name: BPC (Shangqiu City, Henan Province, China)
  
• Frequency: 68.5 kHz

CITIZEN®'s PROMASTER Diver is the perfect ISO compliant timepiece for the bold seeking the thrill of a deep-sea challenge. Built with diving in mind, this timepiece is tough and durable. Shown in a stainless steel case and bracelet, the PROMASTER Diver features a one-way rotating elapsed-time bezel, a screw-back case and screw-down crown, and an anti-reflective crystal. Water resistant up to 200 metres.

Specifications:-

Model

• BN0191-55L
  

Good looks meet dive-ready functionality in the latest Promaster Dive timepiece. Comfortable on the wrist at 41mm in silver-tone stainless steel, this handsome tool watch is secured to the wrist via a matching triple-link bracelet and stylised in wear via a blue unidirectional bezel. The gradient blue dial hosts the highly visible applied hour markers, with plenty of lume and a unique handset easily showcases the time no matter the lighting conditions. A subtle date window at the 3 o'clock position provides daily utility. Featuring our Eco-Drive technology – sustainably powered by light, any light. Never needs a battery. This high-performance watch includes a wetsuit extender that doubles as a tool-less micro adjust, is ISO compliant and water resistant up to 200 meters, and comes in an exclusive dive tank box. Calibre number E168.

Specifications:-

Model

• BN0260-54L