Grand Seiko Spring Drive U.F.A. – 37 mm

Reference Number
SLGB003

The Spring Drive U.F.A. movement with an astounding annual rate makes its debut in a creation inspired by the beauty of ice forests.

TECHNICAL SPECIFICATIONS

Exterior
Exterior: High-intensity titanium
Case back: See-through & Screw case back
Glass Material: Box shaped sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
Case size: Diameter 37.0mm, Lug-to-lug 44.3mm, Thickness 11.4mm
Band width: 20mm
Clasp type: Micro-adjustment clasp
The perimeter of Band: 190mm

Movement
Caliber no.: 9RB2 Instructions
Movement Type: Spring Drive
Power reserve: Approx. 72 hours (3 days)
Accuracy: ±20 seconds per year (±3 seconds per month)

Functions
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Weight: 100 g

Other details / Features:
– Screw-down crown
– Allergy-safe metal
– 34 jewels
– Power reserve indicator