Description
Grand Seiko Sport GMT – SBGJ237G Mechanical Hi-Beat Watch
Grand Seiko Mechanical Hi-Beat GMT
Specifications
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, index(es) and bezel
- Case size: Diameter 44.2mm Lug-to-lug 50.6mm Thickness 14.4mm
- Band width: 21mm
- Clasp type: Three-fold clasp with push button release
- The perimeter of Band: 201mm
Movement
- Caliber no.: 9S86 Instructions
- Movement Type: Automatic with manual winding
- Power reserve: Approx. 55 hours
- Mean daily rate: +5 to -3 seconds per day (Mean daily rate is a mean value of daily rates in a condition where the movement before assembly in a case is measured in six positions in a fixed manner under artificially controlled environment for 12 days.)
Functions
- Water resistance: 20 bar
- Magnetic resistance: 4,800 A/m
- Weight: 188 g
- Rotating bezel (24-hour display)
- Screw-down crown
- 37 jewels
- 24-hour hand (dual time display function)
- Calendar-linked time difference adjustment function
Reference: SBGJ237