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Seiko Prospex Crystal Trophy Speedtimer Solar Chronograph 41.5mm Mens Watch Blue
Ref. SSC935P1
Sits in Seiko’s upper tier here — more premium than three quarters of the Seiko watches we list, which start at £126.
Price range £126 to £3,550 across 151 Seiko watches in stock.The Speedtimer line traces its roots to the 1960s, when Seiko built precision timing equipment for international athletics — the kind used to settle fractions of a second at major competitions. The Crystal Trophy editions carry that reference forward through the dial, whose ice-blue sunray finish is drawn from the crystal awards presented to competitors at those events. It is a specific piece of design thinking rather than a generic colourway choice. At 41.4mm across and 13mm deep, the case is not small, but neither is the dial busy in the way a six-complication face can easily become: the black sub-dials sit cleanly against the blue ground, the power reserve sits unobtrusively at seven o'clock, and the tachymeter bezel gives the whole thing a sporting purposefulness without tipping into caricature. The 164-gram bracelet wears with enough substance to anchor it, and the push-button three-fold clasp makes fine adjustment straightforward. The V192 calibre will charge from artificial light as readily as daylight, which matters for a watch worn largely indoors — a fully charged cell carries roughly six months of reserve, so seasonal gaps in wear are not a concern. The chronograph measures to one-fifth of a second, which is closer to the heritage this watch claims than the single-second resolution of most sport chronographs.
- Reference
- SSC935P1
- Brand
- Seiko
- Collection
- Speedtimer
- Case size
- 41.4mm
- Case thickness
- 13mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Blue
- Crystal
- Sapphire
- Bezel
- Fixed tachymeter
- Movement
- Quartz
- Calibre
- V192
- Functions
- Chronograph, Date, Small seconds, Power reserve indicator, Tachymeter, Solar powered
- Water resistance
- 100m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Three-fold clasp
- Lume
- LumiBrite
- Retailer
- Mappin & Webb
Additional specifications
- Lug-to-lug
- 45.9mm
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.
Also in 6 collections
This watch appears in the Seiko Speedtimer range (16), Stainless Steel Watches (2,531), Chronograph Watches (914), Blue Dial Watches (701), Sports Watches (696) and Dive Watches (499).
What the specifications mean
Strengths
- 100m water resistance covers swimming and watersports
- 45.9mm lug-to-lug keeps the 41.4mm case wearable
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
- One of Seiko's more premium watches
Price history
This watch is currently at its highest recorded price. It was £660 on 14 August. Prices are checked every day, and we record any changes.
Seiko Prospex Crystal Trophy Speedtimer alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | SSC935P1 | YA142301 | C0434173808100 |
|---|---|---|---|
| Price | £690 | £619 | £590 |
| Case size | 41.4mm | 41mm | 41mm |
| Water resistance | 100m | 100m | 100m |
| Movement | Quartz | Quartz | Quartz |
| Strap | Stainless steel bracelet | Stainless steel bracelet | Fabric strap |
| This watch | Closely matched |
|
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.
Water resistance explainedWill the glass scratch?
Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.
Sapphire, mineral and acrylic comparedDoes it need a battery?
Yes. It is quartz, so expect a battery change every two to three years at a jeweller.
Quartz, automatic and solar comparedWill it fit my wrist?
Lug-to-lug is 45.9mm, which suits wrists from roughly 16cm (6¼ inches) upward.
Lug-to-lug decides fit more than case diameter does.
How to size a watch to your wristIs it a men's or women's watch?
Listed as men's.
Cheapest place to buy
Mappin & Webb is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
Has the price changed recently?
It's currently at its highest recorded price. It's ranged between £660 and £690, today it's £690.
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