Grand Seiko ‘Ushio’ Blue – SLGA023G Spring Drive Diver’s Watch

£10,950.00

Grand Seiko Evolution 9 Collection
Diver’s watch with 5-day Spring Drive movement

Featuring the Evolution 9 Style, 200 meters of water resistance, and a blue variation on the “ushio” dial initially seen in 2022 in black, the new Reference SLGA023 is the latest diver’s watch from Grand Seiko. Below its distinctive, patterned dial is the Spring Drive Caliber 9RA5, a next-generation movement with automatic winding, ±10 seconds per month accuracy, and a power reserve of 120, or about five days, when fully wound.

The Evolution 9 Style is a set of original design techniques intended to further pursue usability and beauty in wristwatches and is a development upon the Grand Seiko Style. This sports watch combines these design elements with compliance with ISO standards to satisfy the requirements for a diver’s watch, with increased readability, operability, and robustness.

The coastal waters of Japan are influenced by the flow of the Kuroshio Current, one of the world’s major ocean currents, as well as by the nutrient-rich waters of the Oyashio Current, creating one of the world’s most diverse ocean regions. The dynamic undulation of the waves of these ocean currents is expressed in the powerful dial pattern of this watch, which also uses a unidirectionally rotating bezel with an insert made of ceramic. However, unlike last year’s Spring Drive diver’s watch, which was black, this year the dial and bezel are in Grand Seiko blue.

 

Reference: SLGA023G

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Description

Grand Seiko ‘Ushio’ Blue – SLGA023G Spring Drive Diver’s Watch

Grand Seiko ‘Ushio’ Blue : SLGA023G

Evolution 9 Collection

https://www.austenjewellers.co.uk/grand-seiko/

Description

This timepiece is named ‘Ushio’ – the Japanese for ‘tide.’ The textured blue dial design is inspired by the richly biodiverse sea around Japan with its strong currents surrounding the unique shape of the archipelago which greatly influenced the development of Japanese nature and culture. The Grand Seiko watchmakers’ pride in their surroundings is regularly represented in their designs – from engineering watch movements which emulate the smooth motion of time passing, to creating dials reflecting the beauty of Japanese nature.

The SLGA023G is powered by the latest iteration of the unique in-house Spring Drive movement that generates energy like a traditional mechanical watch but combines this with an electronic regulator for superior precision and accuracy.
The signature of Spring Drive is the smooth motion of its second hand which moves in a silent and beautiful glide motion, rather than the second tick of a quartz watch or the rapid beat of a mechanical watch. Now relaunched, revamped and redesigned: the next generation Spring Drive Calibre 9RA2 is slimmer, with an impressive power reserve of 120 hours and even greater accuracy of -/+10 seconds per month. Slimness is achieved with an Offset Magic Lever that reduces the movement’s depth by 0.8mm compared to our core 9R range. The 120 hour power reserve is achieved through Dual-size Barrels arranged to allow for expanded capacity in a smaller space while the One-piece Centre Bridge guarantees the movement’s strength, durability and shock resistance.

This timepiece has a water resistance of up to 200m and the case and bracelet is made using a high-intensity lightweight titanium.

Every Grand Seiko features signature high standards of precision, durability and legibility, handcrafted in Japan by Takumi artisans. Grand Seiko: beautifully, precise Japanese watchmaking, from the pinnacle of Seiko Watch Corporation’s in-house manufacture.

Specifications

Exterior

  • Exterior: High-intensity titanium
  • Case back: Screw case back
  • Glass Material: Sapphire crystal
  • Glass Coating: Anti-reflective coating on inner surface
  • LumiBrite: LumiBrite on hands, index(es) and bezel
  • Case size: Diameter 43.8mm Lug-to-lug 51.5mm Thickness 13.8mm
  • Band width: 23mm
  • Clasp type: Three-fold clasp with secure lock & push button release, solid & slide adjuster

Movement

  • Caliber no.: 9RA5 Instructions
  • Movement Type: Spring Drive
  • Accuracy: ±10 seconds per month (±0.5 second per day)

Functions

  • Magnetic resistance: 4,800 A/m

Other details / Features:

  • Unidirectional rotating bezel
  • Screw-down crown
  • Three-fold clasp with secure lock
  • Power reserve indicator

Reference: SLGA023G

Additional information

Brand

Grand Seiko

Case Size

43.8mm

Collection

Evolution 9

Material

Titanium

Watch Movement

Spring Drive