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Grand Seiko

Evolution 9 Moonlit Birch

SKU: SLGW007
  • $10,00000
  • GRAND SEIKO AUTHORIZED DEALER
  • TOPPER EXTENDED GUARANTEE

Moonlight on the emblematic birch

The noble birch tree has become a totem of Grand Seiko's symbiosis with nature, and this brooding reference carries that theme with a dial inspired by moonlight on this distinctive textured surface. This 10-beat, manual-winding mechanical watch is based on the “Evolution 9 Style,” a unique design grammar that takes the fusion of Grand Seiko’s spirit with the aesthetic sensibilities of Japan to a higher level. Its textured, navy-colored dial evokes the bark of a white birch tree illuminated by the moon. Featuring a slender stainless steel case that is a mere 9.95mm thick, the creation has an appearance worthy of a Grand Seiko dress watch. The bezel is refined, with a narrow profile that complements the lugs, whose clean lines are echoed on the dial by the indexes. The manual-winding movement is the Caliber 9SA4, which features a high number of vibrations, 10 per second, to maintain a stable level of accuracy, as well as a generous power reserve of up to 80 hours.

The movement achieves a higher winding efficiency thanks to a rearrangement of the gear train and redesign of the parts, so that Caliber 9SA4 achieves a power reserve of 80 hours with 15 percent fewer crown rotations than are required to achieve the same power for Caliber 9SA5 when winding it by hand.

KEY FEATURES

  • Movement

    Manual winding
  • Water Resistance

    30 meters
  • Case

    38mm stainless steel
  • Dial

    Blue

SPECIFICATIONS

Exterior

  • Exterior: Stainless steel
  • Case back: See-through case back
  • Case back with 4 screws
  • Glass Material: Box shaped sapphire crystal
  • Glass Coating: Anti-reflective coating on inner surface
  • Case size: Diameter 38.6mm Lug-to-lug 45.0mm Thickness 10.0mm
  • Band width: 20mm
  • Band Material: Crocodile leather
  • Clasp type: Three-fold clasp with push button release

Movement

  • Caliber no.: 9SA4
  • Movement Type: 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.

Functions

  • Water resistance: Splash Resistant
  • Magnetic resistance: 4,800 A/m
  • Other details / Features:

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About Grand Seiko

It was the determination to excel that brought about the birth of Grand Seiko in 1960. During its development and ever since, the idea that drove the designers and engineers was that Grand Seiko should be the ‘ideal’ watch with standards of precision, durability and beauty that would lead the world.

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