Grand Seiko
Grand Seiko Spring Drive 37 mm Ice 18k
Photography on request
Front view
Dial, hands and bezel as delivered.
Case-back view
Case-back engraving and, where fitted, the sapphire display.
Movement
Calibre with its finishing and decoration.
On the wrist
Worn shot for proportion and strap drape.
Grand Seiko · Spring Drive
Grand Seiko Spring Drive 37 mm Ice 18k
Reference 70021OR.26
Reference at a glance
- Brand
- Grand Seiko
- Collection
- Spring Drive
- Model
- Grand Seiko Spring Drive 37 mm Ice 18k
- Reference number
- 70021OR.26
- Year / era
- 2009 · 2000s — modern production
- Complication
- Moon phase
- Movement
- Automatic chronograph
- Case material
- 18k white gold
- Dial type
- Ice blue
- Strap / bracelet
- White rubber velcro strap
- Water resistance
- 500 m
- Limited-edition status
- Limited edition of 500 pieces
Case, dial & bracelet
- Case dimensions
- 37 mm
- Case thickness
- 10.2 mm
- Case material
- 18k white gold
- Bezel
- Baguette diamond rainbow
- Crystal
- Anti-reflective sapphire, double-domed
- Dial
- Ice blue
- Hands
- Skeletonised sword hands, white luminescent
- Indexes
- Applied Roman numerals
- Bracelet / strap
- White rubber velcro strap
- Clasp / buckle
- Folding clasp in matching case metal
- Water resistance
- 500 m
Movement
- Movement / calibre
- Calibre 66E — Automatic chronograph
- Movement type
- Automatic with micro-rotor
- Frequency
- 28,800 vph (4 Hz)
- Power reserve
- 45 hours
- Number of jewels
- 40 jewels
- Complications
- Moon phase
- Functions
- Annual calendar, moon phase
- Watchmaker
- The calibre is built in-house and adjusted in five positions before delivery.
Production & market
- Production period
- 2009 – 2012
- Limited-edition quantity
- 500 pieces
- Current market information
- Thin secondary-market supply — pricing is set piece by piece at auction.
Designer
Marc Newson
Marc Newson is an Australian industrial designer whose work spans Qantas cabins, Apple hardware and Jaeger-LeCoultre's Atmos clocks; his watch design reduces the object to pure geometry and legibility.
Historical significance
Grand Seiko Spring Drive 37 mm Ice 18k sits within Grand Seiko's Spring Drive line, introduced in 2009. It carries the house codes established since 1960 — 18k white gold case, ice blue dial and automatic chronograph — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- The bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
- The movement's bridges are decorated even where they will never be seen once the watch is cased.
- The reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
The House
Grand Seiko
Brand facts
- Founding year
- 1960
- Founder
- Seiko / Daini & Suwa Seikosha
- Headquarters
- Japan
- Tier
- Premium
- Major collections
- Heritage, Evolution 9, Elegance, Sport, Masterpiece, Spring Drive
- Signature technologies
- Proprietary case-hardening and polishing · Certified chronometer regulation
- Famous movements
- High-beat automatic · Spring Drive · Automatic, Swiss lever escapement · Automatic chronograph
- Notable watches
- Grand Seiko Heritage 37 mm Ice Platinum (1960) · Grand Seiko Heritage 42 mm Black Stainless (1963) · Grand Seiko Heritage 37 mm Slate Ceramic (1969) · Grand Seiko Heritage 44 mm Skeletonised Ceramic (1975)
Brand history
Grand Seiko has spent more than 66 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Heritage, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Seiko / Daini & Suwa Seikosha established Grand Seiko in 1960, working from Japan at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Grand Seiko calibre produced today.
Historical milestones
1960
Seiko / Daini & Suwa Seikosha founds Grand Seiko in Japan.
1969
The quartz era forces Grand Seiko to redefine mechanical watchmaking.
1990
Grand Seiko enters the modern collector market with its signature lines.
2024
Grand Seiko continues to produce Heritage, Evolution 9, Elegance and other icons in limited numbers.