Evolution 9 "White Birch Hi-Beat" SLGH005

SLGH005 captures the dynamism of the white birch tree forests near the studio in Shizukuishi. where all Grand Seiko mechanical 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 Evolution 9 Style 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 centre of gravity that ensures that the watch sits easily and securely on the wrist.

The high-beat watch is powered by the revolutionary Calibre 9SA5. which offers a power reserve of 80 hours thanks to its enhanced energy efficiency.

Specifications
Exterior
Exterior: Stainless steel
Case back: See-through & Screw case back
Glass Material: Box shaped sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
Case size: Diameter 40.0mm Lug-to-lug 47.0mm Thickness 11.7mm
Band width: 22mm
Clasp type: Three-fold clasp with push button release
The perimeter of Band: 190mm
Movement
Caliber no.: 9SA5
Movement Type: Automatic with manual winding
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 artificially controlled environment for 12 days.
Normal Usage Accuracy: +8 to -1 seconds per day
Functions
Water resistance: 10 bar
Magnetic resistance: 4.800 A/m
Weight: 178 g
Other details / Features:
Screw-down crown