GRAND SEIKO

SBGM245G

Grand Seiko 9S Mechanical GMT SBGM245G

Grand Seiko 9S Mechanical GMT SBGM245G

The GMT hand allows the time to be read in a second time zone and the hour hand can be adjusted without compromising the watch’s accuracy. This dual-time capability is the perfect function for the world traveler and is here available in a high-performance sports watch. The hour and minute hands are substantial and carry LumiBrite so as to be easily legible, day and night. The GMT hand is in red and has a distinctive shape that makes it readable at a glance against the deep blue dial. 

Exterior
Exterior: Stainless steel
Case back: Screw case back
Glass Material: Dual-curved sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
LumiBrite: Lumibrite on hands and index(es)
Case size: Diameter 40.5mm Lug-to-lug 48.6mm Thickness 14.4mm
Band width: 20mm
Clasp type: Three-fold clasp with push button release
The perimeter of Band: 192mm
Movement
Caliber no.: 9S66 
Movement Type: Automatic with manual winding
Power reserve: Approx. 72 hours(3 days)
Mean daily rate: +5 to -3 seconds per day
Functions
Water resistance: 20 bar
Magnetic resistance: 4,800 A/m
Other details / Features:
  • Screw-down crown
  • 35 jewels
  • 24-hour hand (dual time display function)
  • Calendar-linked time difference adjustment function

 

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