YEMA Spacegraf Heure Sidérale Tourbillon Volant Limited Edition Black | 60.26.32.06.TEL.L6
YEMA Spacegraf Heure Sidérale Tourbillon Volant Limited Edition Black | 60.26.32.06.TEL.L6
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Description
Description
MILLÉSIME 2026 LIMITED EDITION
THE FINEST EXPRESSION OF YEMA’S SAVOIR-FAIRE
“Millésime” stands for the very best YEMA can produce: a premium, handcrafted, and highly limited timepiece that embodies the legacy of French horology and our ongoing pursuit of excellence.
The most intricate and complicated piece produced by the manufacture this year pays tribute to a founding place in the cradle of French watchmaking: the Besançon Observatory. In 1878, the city built an observatory for a single reason, to allow its watchmakers to set their watches by the stars.
The Spacegraf revives this founding gesture. On its dial, an entire disc turns to the rhythm of the real sky, this is the sidereal time complication, displaying at every moment the stars actually visible above you. At its center, a second rhythm, far faster: the flying tourbillon of the CMM.32 caliber, manufactured in Morteau, visible both from the front and through a sapphire caseback.
This is the story the Spacegraf tells on the wrist: that of a region which has always measured time by looking to the sky.
Limited to 150 numbered timepieces.
CELESTIAL DIAL
The dial is deep black, with a fine sandblasted grain under a black PVD coating, ringed by circular-brushed minute and seconds tracks. At 12 o’clock, the “celestial vault” disc turns once every sidereal day (23h 56min 4s) under a thin sapphire cover that shades from smoky to clear. At 6 o’clock, the flying tourbillon opens the dial onto the movement. The indexes are merged into 3D rings and, along with the numerals, tracks, hands and celestial disc, are treated with Super-LumiNova BGW9 Grade X1. At night, the whole sky glows on the wrist.
3D SUPER-LUMINOVA® GRADE X1
The hour markers and hands are shaped from solid 3D blocks of Grade X1 Super-LumiNova BGW9, so they glow through their full depth. At night, the celestial disc lights up too: a luminous sky on your wrist.
TITANIUM CASE
Like the Besançon Observatory, the Spacegraf opens onto the sky. Its 42mm Grade 5 titanium case is vertically brushed and framed by a circular-brushed bezel, and it holds the complication in just 12.15mm. On top, a double-domed sapphire crystal serves as the dome, with a clear view of the celestial disc and the flying tourbillon.
SAPPHIRE CASEBACK
A sapphire caseback reveals the deep-blue CMM.32 caliber, with constellations engraved across its bridges. The flame-blued ratchet wheel bears a map of the Earth and the inscription “CMM32 – Heure sidérale”, with the flying tourbillon turning just below. Individually numbered out of 150.
FLYING TOURBILLON
Floating escapement offsetting gravity, among watchmaking’s most demanding complications.
CELESTIAL VAULT DISC
Rotating star map, set to sidereal time, showing the sky above you.
105 HOURS POWER RESERVE
Increased power reserve thanks to a large barrel allowing optimized winding.
HIGH SHOCK RESISTANCE
Caliber impervious to shocks, vibrations, and acceleration up to 5,000 Gs in all directions.
THE FLYING TOURBILLON, A SYMBOL OF HIGH-HOROLOGY
A true masterpiece of watchmaking, the flying tourbillon ranks among the most complex complications to produce, offering a fascinating visual spectacle thanks to its mechanism, supported solely by its base, which gives it the illusion of floating in space.
Designed to counteract the effects of gravity and improve timekeeping precision, this device demands exceptional mastery: the absence of an upper bridge requires perfect balancing of the components, lightweight materials to reduce friction, and hundreds of hours of meticulous work.
105 HOURS OF POWER RESERVE THANKS TO A LARGE BARREL
The CMM.32 has a single large barrel optimized to ensure a power reserve of 105 hours. Specifically manufactured for the CMM.32 by Générale Ressorts, this large barrel is off-centered in order to make enough room for the gears and the balance wheel so as to preserve a contained thickness.
OPTIMIZED ESCAPEMENT
Interface between the gear train and the regulating organ, the escapement is the place where energy and chronometry intersect in a complex interaction. The escapement is an energy-demanding system, it alone consumes more than half of the barrels’ energy. It is the friction of the anchor pallets on the escape wheel which, despite their lubrication, dissipates a good part of this energy.
The CMM.32 tourbillon escapement presents notable improvements which reduce this friction thanks to an innovating and particularly sophisticated manufacturing process (LiGA technology). This advanced escapement ensures optimization of the entire mechanics, precision and longevity of the caliber components.
ANTI-MAGNETIC & SHOCK-RESISTANT
Designed for everyday life, the CMM.32 presents robust technical characteristics for a tourbillon caliber. Equipped with non-magnetic components, such as a Swiss-made non-metallic alloy hairspring, a Glucydur balance wheel with an adjustment mass made in gold and micro-components manufactured with LiGA technology materials, the CMM.32 is capable of withstanding exposures to electromagnetic fields up to 2,000 Gauss, a real feat for a tourbillon caliber.
The architecture of the tourbillon cage bridge with its free-sprung balance wheel and the shock absorbers manufactured by Kif make the CMM.32 impervious to shocks, vibrations, and acceleration up to 5,000 Gs in all directions.
SIDEREAL TIME COMPLICATION
In 1878, at the request of Besançon’s watchmakers, a presidential decree established an astronomical, meteorological and chronometric observatory in the city. Its purpose was to certify the precision of their watches by observing the stars. The Spacegraf’s “celestial vault” disc brings the principle of the Observatory’s meridian circle to the wrist. The disc turns continuously, set to the same 23h 56min 4s the Earth takes to turn once on its axis relative to the stars. At every moment, it shows the part of the sky actually visible above you.
LEATHER STRAP WITH TITANIUM PIN BUCKLE
This black leather strap with matching black stitching tapers from 21mm to 16mm. The lining is embossed “Manufacture Française – Fondée en 1948”. It closes with a vertically brushed Grade 5 titanium pin buckle with shiny bevels, engraved YEMA.
CALIBER
- Flying Tourbillon CMM.32
- -3/+7 seconds accuracy
- 105h power reserve
- Hours, minutes, seconds, sidereal time
CASE & CRYSTAL
- Material: Titanium Grade 5 with vertically brushed flanks and lugs, circular-brushed and polished bezel
- Diameter: 42mm
- Thickness: 12.15mm
- Lugs: 21mm
- 1.60mm double dome sapphire crystal
DIAL & HANDS
- Deep black PVD coated, fine sandblasted grained dial
- 3D dial numerals, tracks, hands and celestial disc treated with Super-LumiNova BGW9 Grade X1
STRAP
- Black leather strap with matching black stitching and Grade 5 titanium pin buckle with shiny bevels
CROWN
- Push-pull crown in Grade 5 titanium with embossed YEMA logo
WATER RESISTANCE
- 10 BAR / 100 m / 330 feet
Shipping & Return
Shipping & Return
Shipping
Within Canada: STANDARD shipping is free on orders of $130 or more. A flat rate applies to orders under $130. Express options are available at checkout. Return shipping is also included for all regular priced new stock. All orders are updated with a tracking number as soon as the product is shipped.
Seiko products ship within Canada only. New and pre-owned Seiko products can only be shipped to a Canadian address or picked up in store.
Outside Canada: Other brands and our non-Seiko consignment pieces can be shipped to the US and internationally. Available options and rates are shown at checkout.
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Returns
You may return or exchange a regular priced new timepiece for store credit within 2 days of delivery. Bezel House will provide a return shipping label at no charge.
Other discounted new timepieces can also be returned for store credit within 2 days of delivery. Shipping and insurance costs will be deducted from the credit, and a 15% restocking fee applies.
FINAL SALE (no returns or exchanges): Featured Specials, clearance, vintage / pre-owned and consignment pieces, and discontinued items.
All items, including accessories, tags (if provided) and packing materials, must be returned in their original condition.
If your order arrives damaged, or is not what you ordered, please contact us at sales@bezelhouse.com within 2 days of delivery. All new stock is covered under standard manufacturer warranty.
If you are shipping an item back yourself, please use a traceable service with insurance. We don’t guarantee returns sent by mail / courier.
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