Watch Technical Specifications – GMT
Case:
316L Surgical Stainless Steel case, 40 mm diameter, 11.9 mm thickness.
Unidirectional bezel with 120 clicks (Bi-directional 24 clicks optional on request), precision-machined for smooth rotation and crisp locking.
Bracelet:
Choice of Jubilee/Oyster-style rivet bracelet with polished or matte center – in 316L stainless steel, equipped with a quick micro-adjustment deployant clasp, allowing precise length adjustment without tools.
Glass:
Multi-layer anti-reflective sapphire glass, ensuring exceptional transparency and scratch resistance.
Hands:
Mercedes GMT-style hands, with hand-applied BGW9 luminescent coating (BLUE emission).
Dial:
Dial with hand-applied indices, also coated with BGW9 luminescence (BLUE emission), ensuring excellent visibility in dark environments.
Bezel Insert:
Ceramic GMT bezel with engraved and painted 24-hour markings.
Case Back:
Available in two versions: solid (brushed 316L steel) or transparent sapphire, allowing admiration of the automatic movement.
Crown:
Screw-down crown featuring a triple sealing system (gasket, tube, and reinforced internal threading), ensuring maximum protection against pressure and humidity.
Movement:
SEIKO NH34A GMT automatic caliber (Japan origin, genuine).
Complications: date, GMT, manual winding, and hacking seconds.
Each movement is relubricated, regulated, and calibrated according to the N.A Timekeeping protocol, guaranteeing an accuracy of –4 / +5 seconds per day, compared to –30 / +90 seconds ex-factory.
Oscillating Weight:
Multi-block oscillating weight, composed of brass and tungsten for optimal inertia and efficient winding.
Available finishes: steel, yellow gold, or rose gold.
Water Resistance:
Certified to 200 meters (20 ATM).
Each piece undergoes a double water resistance test, with the printed results accompanying each watch.
Warranty:
3-year international warranty, with full coverage for transportation (return and reshipment).
Each watch comes with its personalized warranty card, including the unique serial number and assembly date.
Customization:
All components can be configured according to your preferences: bracelet, hands, bezel insert, dial, etc.
Possibility to add a personalized engraving (text, logo, initials, phrase).
For any specific request, please contact our workshop directly at +33 6 07 35 93 15.