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Seiko SUP429P1 Solar Stone Set Blue Leather Strap Watch - W78126
Ref. SUP429P1
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Stepping up in the same dial colour
A rectangular dress watch at 25mm sits at the smaller end of even the most restrained wrist, and that is precisely the register this piece occupies — closer to a bracelet with a dial than to a conventional watch. The 40 Swarovski crystals set along the bezel sides reinforce that reading without tipping into costume jewellery; the blued-steel hands against the silver dial provide enough contrast to stay legible. The blue calfskin strap is the one element that lifts it away from a purely neutral palette. The V115 solar calibre underneath needs almost no attention from its owner — a full charge holds for twelve months, meaning the watch can sit unworn through a season and still be running when retrieved. For something worn occasionally to formal occasions, that is a more useful property than a conventional quartz movement offers.
- Reference
- SUP429P1
- Brand
- Seiko
- Collection
- Discover MoreCase Size: 25
- Case size
- 25mm
- Case thickness
- 6.3mm
- Lug width
- 12mm
- Case material
- Stainless steel
- Case shape
- Rectangular
- Dial
- Silver
- Crystal
- Hardlex
- Movement
- Solar
- Calibre
- V115
- Functions
- Solar powered
- Water resistance
- 30m
- Bracelet / strap
- Leather strap
- Strap colour
- Blue
- Clasp
- Buckle
- Lume
- Luminous
- Retailer
- F.Hinds
Additional specifications
- Lug-to-lug
- 35.6mm
- Gem set
- Yes
Learn more about Seiko
Kintaro Hattori opened a watch and clock shop in Tokyo in 1881, aged twenty-one, and began manufacturing under the name Seikosha — roughly, house of exquisite workmanship — in 1892. The Seiko name appeared on watches from 1924.
The company's significance is that it broke the Swiss monopoly twice. First on precision: Seiko was appointed official timekeeper of the 1964 Tokyo Olympics and built the quartz chronometers and printing timers to do it, and in the 1960s its movements placed highly at the Neuchâtel and Geneva observatory trials against the best Swiss houses.
Then on technology. On Christmas Day 1969 Seiko released the Astron, the world's first quartz wristwatch, accurate to five seconds a month where mechanical watches managed that per day. The consequences for Switzerland were catastrophic — employment in the Swiss industry fell by roughly two-thirds over the following decade. Seiko deliberately did not enforce its quartz patents, allowing the technology to spread.
The same year it produced the 6139, among the first automatic chronographs, and it has since introduced Kinetic, Spring Drive — a hybrid regulating a mechanical mainspring electronically, giving a perfectly gliding seconds hand — and its own dive and field lines.
Seiko remains fully vertically integrated, making its own hairsprings, quartz crystals, and even the Zaratsu-polished cases, at price points from under a hundred pounds upward.
- 1881
- Kintaro Hattori opens his Tokyo shop.
- 1924
- The first watches carry the Seiko name.
- 1964
- Official timekeeper of the Tokyo Olympics.
- 1969
- The Astron becomes the first quartz wristwatch.
- 1999
- Spring Drive enters production.
Manufacturer’s guarantee
What the specifications mean
A slim watch on leather, made for wearing with a shirt.
Strengths
- 25mm wears small and slips under any cuff
- Luminous hands and markers for low light
- Sits in the lower half of Seiko's range as we list it
Worth knowing
- 30m means keeping it away from water
Compare alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | SUP429P1 | 1782904 | EW2290-54L |
|---|---|---|---|
| Price | £125 | £149 | £199 |
| Case size | 25mm | 28mm | 28mm |
| Water resistance | 30m | 30m | 100m |
| Movement | Solar | Solar | Solar |
| Strap | Leather strap | Mesh 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?
No. At 30m it will survive rain and handwashing, but not submersion of any kind.
Will the glass scratch?
It resists most everyday knocks. Hardlex is a hardened mineral glass — tougher than standard mineral, softer than sapphire.
Does it need a battery?
No. It charges from light, and the cell behind that is designed to last a decade or more.
What size strap does it take?
12mm. 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 35.6mm, which suits wrists from roughly 15cm (6 inches) upward.
Lug-to-lug decides fit more than case diameter does.
Is it a men's or women's watch?
Listed as women's.
Cheapest place to buy
F.Hinds is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
Who are F.Hinds?
F.Hinds has been run by the same family since 1856 and is now in its fifth generation, with more than 115 shops across England and Wales. They are a member of the Responsible Jewellery Council and an Authorised Diamond Dealer.
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