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Grand Seiko Evolution 9 Spring Drive U.F.A
Ref. SLGB003
Sits in Grand Seiko’s upper tier here — more premium than three quarters of the Grand Seiko watches we list, which start at £2,300.
Price range £2,300 to £10,500 across 20 Grand Seiko watches in stock.The 9RB2 carries Grand Seiko's new U.F.A. designation — Ultra Fine Accuracy — and earns it: the calibre is rated to ±20 seconds per year, a figure measured against the full annual cycle rather than the daily or monthly rates that have long served as the industry's benchmarks. It is built at the Shinshu Watch Studio in Shiojiri, the facility Grand Seiko keeps for its most demanding movements, and it achieves this through a first for Spring Drive engineering: a fine-regulation mechanism integrated directly into the glide-spring system, allowing the movement to be tuned with a precision no previous Spring Drive calibre could reach. The power reserve indicator, rather than breaking up the dial, is positioned on the movement side and visible through the open caseback — a decision that keeps the dial face clear while giving the complication somewhere it reads more naturally. The dial takes its name and its texture from the frost-covered forests of the Kirigamine Highlands, which lie east of the Shinshu studio. Under flat light it reads as silver; at an angle it shifts toward a pale, cold blue, the pressed structural pattern catching the change unevenly across its surface. At 37mm this is the most compact automatic Grand Seiko has built around the 9R family, and in high-intensity titanium it sits on the wrist with almost no sense of weight — the kind of lightness that becomes conspicuous only when you pick the watch up. The bracelet introduces something enthusiasts have been asking for: a tool-free micro-adjustable clasp that moves in 2mm increments via push-button, so fit changes with the season without requiring anything beyond the wearer's hands.
- Reference
- SLGB003
- Brand
- Grand Seiko
- Collection
- Evolution 9 CollectionCase Size: 37
- Case size
- 37mm
- Case thickness
- 11.4mm
- Lug width
- 20mm
- Case material
- Titanium
- Case shape
- Round
- Dial
- Silver
- Crystal
- Sapphire
- Movement
- Spring Drive
- Calibre
- 9RB2
- Functions
- Date, Power reserve indicator
- Water resistance
- 100m
- Bracelet / strap
- Titanium bracelet
- Strap colour
- Silver
- Clasp
- Folding clasp
- Lume
- Luminous
- Retailer
- Mappin & Webb
Additional specifications
- Lug-to-lug
- 44.3mm
- Power reserve
- 72 hours
Learn more about Grand Seiko
Grand Seiko began in 1960 as Seiko's attempt to build a watch to the highest standard in the world, judged against Swiss chronometer criteria rather than Japanese ones. The first model met the Bureaux Officiels standard, and the ambition was explicit: not a good Japanese watch, but a better watch than the Swiss were making.
The 1967 Grammar of Design, laid down by Taro Tanaka, still governs the aesthetic. Flat surfaces and sharp facets rather than curves; hands and markers cut to catch light in defined planes; every surface either mirror-polished or perfectly flat, with no in-between. The polishing is done by hand on tin plates — Zaratsu — which produces distortion-free reflections and cannot be replicated by machine.
The precision case was made at observatory trials in the 1960s, where Grand Seiko movements placed among the leaders in Geneva and Neuchâtel before the competitions ended.
The house's distinctive technology is Spring Drive, introduced in 1999 after nearly three decades of development. A conventional mainspring drives the watch, but the escapement is replaced by an electromagnetic brake regulated by a quartz oscillator: mechanical power, quartz accuracy, and a seconds hand that sweeps without ticking at all.
Grand Seiko was separated into a standalone brand internationally in 2017, with dials frequently drawn from Japanese landscape — the Snowflake among the best known.
- 1960
- The first Grand Seiko is built to Swiss chronometer standards.
- 1967
- Taro Tanaka codifies the Grammar of Design.
- 1968
- The 61GS Hi-Beat reaches 36,000 vibrations per hour.
- 1999
- Spring Drive combines mechanical power with quartz regulation.
- 2017
- Established as an independent brand worldwide.
Also in 3 collections
This watch appears in Back in Stock (856), Silver Dial Watches (638) and Titanium Watches (159).
What the specifications mean
Strengths
- 100m water resistance covers swimming and watersports
- 37mm suits most wrists
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
- One of Grand Seiko's more premium watches
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 100m it is rated for swimming and snorkelling, though not for diving.
Will the glass scratch?
Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.
Does it need a battery?
No. Spring Drive is wound by the wrist and regulated electronically, with no battery.
How long does it run for when it's not worn?
About 72 hours fully wound — enough to sit off the wrist over a weekend and still be running.
What size strap does it take?
20mm. Any strap of that width will fit, and on most modern watches quick-release bars make the swap a two-minute job with no tools.
Will it fit my wrist?
Lug-to-lug is 44.3mm, which suits wrists from roughly 16cm (6¼ inches) upward.
Lug-to-lug decides fit more than case diameter does.
Is it a men's or women's watch?
Listed as men's, though at 37mm it sits in the range that suits anyone.
Cheapest place to buy
Mappin & Webb is the only UK retailer we track stocking this reference new, at £9,950. There is nothing to compare it against today.
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