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), precisely machined for smooth rotation and crisp locking.
Bracelet:
Choice of Jubilee/Oyster-style riveted bracelet with polished or matte center - in 316L stainless steel, equipped with a deployant clasp with rapid micro-adjustment, allowing precise length adjustment without tools.
Crystal:
Multi-layer anti-reflective sapphire crystal, guaranteeing exceptional transparency and scratch resistance.
Hands:
Mercedes GMT-style hands, with hand-applied C1 luminescent coating (green emission).
Dial:
Dial with hand-applied indices, also coated with C1 luminescence (green 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 sapphire display, allowing the automatic movement to be admired.
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 (genuine Japanese origin).
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 watch undergoes a double water resistance test, and the printed results accompany each watch.