Grand Seiko SLGH031

Men's Collection | Evolution 9 Collection
Categories: , SLGH031 Tags: , Brand:

Grand Seiko Evolution 9 ‘White Birch’ Hi-Beat 40mm

£9,000

This item will be released 1 October 2026.
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This watch will be available in October

Description

The dial of this Grand Seiko Evolution 9 watch is inspired by the birch forest on the Hiraniwa Plateau in Japan near to Grand Seiko studio Shizukuishi, when sunlight reflects off the white bark of the trees. The silver white dial is finished with the Birch Pattern, capturing the quiet luminosity of the birch woodland as the sun filters through the leaf canopy. Hour and minute hands in silvertone are joined by a blue steel second hand, adding a subtle note of contrast to the pure white of the dial.

The 40mm case and bracelet are crafted in Ever-Brilliant Steel – Grand Seiko’s proprietary alloy with a corrosion resistance 1.7 times higher than standard stainless steel, and a brilliantly white hue that lends the Zaratsu-polished surfaces an exceptional luminosity. The anti-reflective box sapphire crystal glass and screw-down crown ensure water resistance to 100m. The three-fold clasp features a push-button release and micro-adjustment function for a precise, personalised fit.

At the heart of the watch is the in-house crafted mechanical hi-beat calibre 9SA5, accurate to +8/-1 seconds per day with an impressive 80-hour power reserve.

Every Grand Seiko features signature high standards of precision, durability and legibility, handcrafted in Japan by Takumi artisans.

Specifications

Movement
Calibre: 9SA5
Movement Type: Automatic with Manual Winding
Power Reserve: 80 Hours
Mean Daily Rate: +5 to -3 seconds per day

*Prior to the assembly of the movement in a case, it undergoes testing in six different positions for 12 days in a controlled environment. The ‘mean daily rate’ is the average value of daily results from these tests.
Accuracy In Use: +8 to -1 seconds per day
Watch Exterior
Case Diameter: 40.0mm
Case Length: 47.0mm
Case Thickness: 11.7mm
Case Material: Ever-Brilliant steel
Case Back: Ever brilliant steel and sapphire crystal, See-through & screw case back
Strap/Bracelet: Ever-Brilliant Steel
Lug Width: 22.0mm
Clasp: Micro-adjustment clasp
Dial Colour: Silver, White
Other Specifications
Crystal Coating: Anti-reflective coating on inner surface
Crystal Type: Box shaped sapphire crystal
Water Resistance: 10 bar
Magnetic Resistance: 4,800 A/m
Other Specifications: Screw case back, Screw-down crown, See-through case back

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