Precision: ±15 seconds per month (without receiving a GPS signal and at temperatures between 5°C and 35°C )
Power Reserve: Operating for approx. 6 months (when fully charged), power save: approx. 2 years
Case Details
Case Material: Stainless steel (super hard coating) with ceramic bezel
Case Size
Thickness: 11 mm
Diameter: 39 mm
Lug-to-lug: 46.2 mm
Crystal: Sapphire crystal
Crystal Coating: Super-clear coating
Distance between lugs: 21
Other Details
Water Resistance: 100m
Features and Functions:
LumiBrite on hands and index(es)
Screw case backOvercharge prevention function
Power save function
Perpetual calendar to the February 28, 2100
GPS signal reception function (Time zone adjustment, automatic time adjustment)
Reception result display function
Function to prevent the GPS signal reception (in-flight mode)
Automatic hand position alignment function
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Grand Seikoelevates the pure essentials of watchmaking to the level of fine art, handcrafted to perfection.