Evolution 9 Collection Shirakaba. The white birch tree that thrives in Shinshu.

White Birch

SLGA009 captures the quiet mood of the white birch tree forests near the studio in Shinshu, where all Grand Seiko Spring Drive watches are crafted.

Features

Inspired by the beauty of white birch forests from new Series 9

SLGA009 captures the quiet mood of the white birch tree forests near the studio in Shinshu, where all Grand Seiko Spring Drive watches are crafted. To look closely at the dial is to experience the exact same feeling that the visitor to these forests receives and to be brought closer than ever to the true and eternal nature of time.

The overall look of the watch is known as the Series 9 Design and it will be an important part of the Grand Seiko’s signature in the years to come. Its powerful hands and grooved, prominent markers ensure perfect legibility, its Zaratsu polished, distortion-free mirror finish and delicate hairline finish alternate give the case a quiet and harmonious glow. The case has wide lugs and a low center of gravity that ensures that the watch sits easily and securely on the wrist.

The Spring Drive watch carries the latest Caliber 9RA2 which offers a 120 hour power reserve and an enhanced precision rate of ±0.5 seconds per day.

Specifications

Exterior

Exterior: Stainless steel

Case back: See-through & Screw case back

Glass Material: Dual-curved sapphire crystal

Glass Coating: Anti-reflective coating on inner surface

Case size: Diameter 40.0mm Lug-to-lug 47.9mm Thickness 11.8mm

Band width: 22mm

Clasp type: Three-fold clasp with push button release

The perimeter of Band: 196mm

Movement

Caliber no.: 9RA2 Instructions

Movement Type: Spring Drive

Power reserve: Approx. 120 hours (5 days)

Accuracy: ±10 seconds per month (±0.5 second per day)

Functions

Water resistance: 10 bar

Magnetic resistance: 4,800 A/m

Weight: 176 g

Other details / Features:

Screw-down crown

Power reserve indicator