Grand Seiko SBGJ251 GMT Green Dial 39,5mm 2024

Specification

Exterior:
Stainless steel, caseback: stainless steel and sapphire crystal.

Case back:
See-through case back.
Case back with 6 screws.

Glass Material:
Box-shaped sapphire crystal.

Glass Coating:
Anti-reflective coating on inner surface.

Case size:
Diameter 39.5 mm, lug-to-lug 46.9 mm, thickness 14.1 mm.

Band width:
19 mm.

Clasp type:
Three-fold clasp with push button release.

The perimeter of band:
185 mm.

Movement:
Caliber no.: 9S86 (Instructions).
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 an artificially controlled environment for 12 days.

Normal usage accuracy: +8 to -1 seconds per day.

Functions:
Water resistance: Splash resistant.
Magnetic resistance: 4,800 A/m.
Weight: 150 g.

Other details / Features:
• 37 jewels.
• 24-hour hand (dual time display function).
• Calendar-linked time difference adjustment function.