Watch technical specifications – GMT
Case:
Micro-bead blasted 316L surgical stainless steel case, 40 mm diameter, 11.9 mm thickness.
GMT bidirectional bezel with 24 clicks, precision-machined for smooth rotation and a crisp locking feel.
Strap:
Black FKM rubber strap, equipped with a quick micro-adjustment deployment clasp, allowing precise length adjustment without tools.
Crystal:
Multi-layer anti-reflective coated sapphire crystal, ensuring exceptional clarity and scratch resistance.
Hands:
GMT Mercedes-style hands, with hand-applied BGW9 luminescent coating (blue emission).
Dial:
Dial with hand-applied markers, also coated with BGW9 luminescence (blue emission), ensuring excellent visibility in dark environments.
Bezel insert:
High-grade titanium insert, scratch-resistant.
GMT bezel with 24-hour markings
Caseback:
Available in two versions: solid (micro-bead blasted 316L steel) or sapphire crystal, allowing you to admire the automatic movement.
Crown:
Screw-down crown featuring a triple sealing system (gasket, tube, and reinforced internal threading), ensuring maximum protection against pressure and moisture.
Movement:
SEIKO NH34A GMT automatic caliber (Japanese origin, authentic).
Complications: date, GMT, manual winding, and seconds stop.
Each movement is re-oiled, regulated, and calibrated according to the N.A Timekeeping protocol, guaranteeing an accuracy of –4 / +5 seconds per day, compared to –30 / +90 seconds straight from the factory.
Oscillating mass:
Multi-block oscillating mass, made 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 watch undergoes a double water resistance test, with printed results accompanying each watch.
Warranty:
3-year international warranty, with full shipping coverage (return and reshipment).
Each watch is delivered with its personalized warranty card, featuring the unique serial number and assembly date.
Customization:
All components can be configured to your preferences: strap, hands, bezel insert, dial, etc.
Option to add a personalized engraving (text, logo, initials, phrase).
For any specific request, contact our workshop directly at +33 6 07 35 93 15.
