Grand Seiko Spring Drive Chronograph GMT 60th Anniversary Limited Edition

Grand Seiko SBGC238

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Grand Seiko Spring Drive Chronograph GMT 60th Anniversary Limited Edition

A new Grand Seiko Spring Drive Chronograph GMT limited edition takes inspiration from the traditional Japanese armour of samurai warlords, the SBGC238. The dial and strap are a distinctive indigo dye colour called “Katsu-iro” that was favoured and used by the Samurai for their armour’s colouring. The watch carries Caliber 9R96 in which the lion symbol in the form of an 18k gold insert indicates the enhanced accuracy of the specially adjusted movement in the oscillating weight.

Grand Seiko Spring Drive Chronograph GMT 60th Anniversary Limited Edition

CONCEPT – The lion, the enduring emblem of Grand Seiko

The lion mark was born together with the first Grand Seiko in 1960. It reflected the ambition of the Grand Seiko team to make a watch that was as precise, durable and beautiful as could be and revealed the intensity of their determination. They defined their goal as making the “king of watches”. So it was that the lion mark came to symbolize the inner strength of Grand Seiko and inspire its watchmakers to create the very best timepieces of which they were capable.

Grand Seiko Spring Drive Chronograph GMT 60th Anniversary Limited Edition

This new watch’s design takes inspiration from the traditional Japanese armour worn by samurai warlords during the Sengoku period, a time marked by civil wars and social upheaval in the late 15th to early 17th century. The timepiece expresses the unwavering spirit of the samurai and Grand Seiko‘s continuous pursuit for the ultimate in watchmaking on its 60th anniversary.
Photo of SBGC238 Color

DESIGN – Colour

The distinctive blue colour of indigo dye, known as “Katsu-iro,” was favoured and used by the Samurai for their armour and represented their bravery. This “Katsu-iro” colour is applied for the dial and together with the watch case reminiscent of a powerful lion, the timepiece expresses the martial warrior’s noble spirit. The grooves of the Katsu-iro coloured crocodile strap are applied rose gold to reflect the strength and dignity of the armour that has been used in the battle over a long period of time.

Photo of SBGC238 Case Design

Case Design

The case, which embodies the intense strength and dignity of lions, is angled inwards to ensure a soft fit on the wrist. It reproduces the strength of the lion’s forelegs to grasp and not release prey, providing overwhelming wearability.Grand Seiko Spring Drive Chronograph GMT 60th Anniversary Limited Edition

The lug of the case looking like a lion’s nail has a flat surface without distortion by Zaratsu polishing and hairline finish. It is a case design that gives a brave impression like a lion.

Photo of SBGC238 Dial Pattern

Dial Pattern

The dial has a pattern representing the mane of the lion, which is the proof of the king of the beasts. A second hand with glide motion unique to the Spring Drive slides gracefully on the lion’s mane.

Grand Seiko Spring Drive Chronograph GMT 60th Anniversary Limited Edition

Case Back

The new timepiece carries the lion symbol in the form of an 18k gold insert in the oscillating weight, denoting the enhanced accuracy of the specially adjusted movement (+/-0.5 seconds a day).

Photo of SBGC238 Case Back

As a proof of the limited edition, “Limited Edition” and the serial number are printed on the case back, with “60th Anniversary 1960-2020” on the crystal sapphire glass in rose gold.

*In an actual product, the case back direction might be different from the photograph.

MOVEMENT – AUTOMATIC SPRING DRIVE 3-DAY CHRONOGRAPH GMT Calibre 9R96

Calibre 9R96 is specially adjusted Calibre 9R86, to deliver an even higher level of precision. Calibre 9R86 is ±15 seconds a month (equivalent to ±1 second per day), whereas Calibre 9R96 is ±10 seconds a month (equivalent to ±0.5 seconds per day). The difference between the two movements lies in the quartz crystal oscillator, which delivers accurate electrical signals.

Grand Seiko Spring Drive Chronograph GMT 60th Anniversary Limited Edition

All 9R Spring Drive use quartz crystal oscillator with stable accuracy. Among them, only quartz crystal oscillator, which exhibits particularly excellent performance, are selected and mounted on the Caliber 9R96. The Grand Seiko lion in 18K gold graces the oscillating weight to symbolize the enhanced accuracy.

Grand Seiko Spring Drive Chronograph GMT 60th Anniversary Limited Edition

Grand Seiko Spring Drive Chronograph GMT 60th Anniversary Limited Edition Technical Specifications

Exterior

  • Case Material: 18k rose gold
  • Glass Material: Dual-curved sapphire crystal
  • Glass Coating: Anti-reflective coating on the inner surface
  • Lumi Brite: Lumibrite on hands, indexes and bezel
  • Case size: Diameter 44.5mm × Thickness 16.8mm
  • Band Material: Crocodile leather
  • Clasp Type: Three-fold clasp with push-button release

Movement

  • Calibre no.: 9R96
  • Movement Type: Spring Drive
  • Power reserve: Approx. 72 hours(3 days)
  • Accuracy: ±0.5 second per day (±10 seconds per month)

Functions

  • Water resistance: 20 bar
  • Magnetic resistance: Equipped
  • Other details / Features:
    ・24-hour hand (dual time display function)
    ・50 jewels
    ・Calendar-linked time difference adjustment function
    ・Case back with lion emblem
    ・Chronograph with 30 minutes & 12 hours
    ・LIMITED EDITION on the case back
    ・Power reserve display
    ・Screw case back
    ・Screw-down crown
    ・See-through case back
    ・Serial number engraved on the case back
    ・Stop second-hand function

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