Grand Seiko Sport, SBGE253

Description

A Spring Drive GMT for the next generation

Equipped with a GMT hand, this watch features Grand Seiko’s unique Spring Drive caliber, which combines the motive force of a mainspring with the high precision of a quartz watch.

Housed in a water-resistant stainless steel case with ceramic bezel, a 24-hour GMT hand and Lumibrite indices for exceptional precision and legibility complemented by the smooth motion glide of Spring Drive.

TECHNICAL DATA

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 40.5mm

Lug-to-lug 48.7mm

Thickness 14.7mm

Band width: 20mm

Clasp type: Three-fold clasp with secure lock and push button release

MOVEMENT

Caliber no.: 9R66

Movement Type: Spring Drive

Power Reserve: Approx. 72 hours (3 days)

Accuracy: ±15 seconds per year

FUNCTION

Water resistance: 20 bar

Magnetic resistance: 4,800 A/m

Weight: 172 g

Other details Features:

Screw-down crown

30 jewels

24-hour hand (dual time display function)

Power reserve indicator

Calendar-linked time difference adjustment function