Seiko MOD - N.A Classic VINTAGE GMT Black Aluminum

Watch Technical Specifications – GMT

Case:
316L surgical-grade stainless steel case, VINTAGE 39.5 mm diameter, 11.4 mm thickness.
Unidirectional 120-click bezel (Bi-directional 24-click optional upon request), precisely machined for smooth rotation and crisp locking.

Bracelet:
Choice of Jubilee/Oyster rivet-style bracelet with polished or matte center - in 316L stainless steel, equipped with a quick micro-adjustment deployant clasp, allowing for precise length adjustment without tools.

Glass:
Multi-layer anti-reflective sapphire crystal, 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:
ALU FINE 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 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 timepiece undergoes a double water resistance test, with printed results accompanying each watch.

Warranty:
3-year international warranty, with full transport coverage (return and reshipment).
Each watch comes with its personalized warranty card, featuring a unique serial number and assembly date.

Customization:
All components can be configured according to your preferences: bracelet, hands, bezel insert, dial, etc.
Possibility of adding personalized engraving (text, logo, initials, phrase).
For any specific request, please contact our workshop directly at +33 6 07 35 93 15.