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Grand Seiko Heritage 9F Quartz
Ref. SBGX263
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Stepping up in Grand Seiko's range
The 9F62 is the movement Grand Seiko built to make the case that quartz, done properly, is not a compromise. Each oscillator crystal is aged and tested over three months before selection, and the finished calibre is hand-assembled in Japan to a tolerance of ±10 seconds across a full year — a standard most mechanical watches cannot match on their best day. The SBGX263 is the direct successor to the SBGX063, distinguished chiefly by the removal of the secondary Seiko branding and the clean placement of the Grand Seiko script at twelve o'clock alone. At 37mm and 10mm deep, it sits close to the wrist without disappearing beneath a cuff, and the 44.6mm lug-to-lug means it scales well across wrist sizes without demanding one. The champagne dial shifts between pale gold and near-white depending on the angle of the light, and it reads that way partly because the multi-faceted baton markers are cut rather than printed — the same zaratsu discipline applied to the case brings mirror edges free of distortion alongside brushed flanks. The hands are polished to the same standard, which means the dial catches light in several directions at once without ever looking busy. The bracelet sizes on half-links rather than by tool-free adjustment, so getting the fit right takes a moment at the outset, but the dual push-button deployment clasp holds it securely once set.
- Reference
- SBGX263
- Brand
- Grand Seiko
- Collection
- HeritageCase Size: 37
- Case size
- 37mm
- Case thickness
- 10mm
- Lug width
- 19mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Champagne
- Crystal
- Sapphire
- Movement
- Quartz
- Calibre
- 9F62
- Functions
- Date
- Water resistance
- 100m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Three-fold clasp
- Lume
- Luminous
- Retailer
- Mappin & Webb
Additional specifications
- Lug-to-lug
- 44.6mm
- Warranty
- 5 years
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 Stainless Steel Watches (2,484), Back in Stock (1,176) and Champagne & Cream Dial Watches (129).
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
- Sits in the lower half of Grand Seiko's range as we list it
Compare alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | SBGX263 | L55125757 | R30233942 |
|---|---|---|---|
| Price | £2,300 | £2,100 | £2,250 |
| Case size | 37mm | 37mm | 35mm |
| Water resistance | 100m | 30m | 50m |
| Movement | Quartz | Quartz | Quartz |
| Strap | Stainless steel bracelet | Stainless steel bracelet | Stainless steel bracelet |
| This watch |
|
|
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?
Yes. It is quartz, so expect a battery change every two to three years at a jeweller.
What size strap does it take?
19mm. 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 44.6mm, 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 unisex, and at this size it suits any wrist that takes the dimensions.
Cheapest place to buy
Mappin & Webb is the only UK retailer we track stocking this reference new, at £2,300. There is nothing to compare it against today.
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