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Seiko SSB409P1 Stainless Steel Nato Striped Nylon Strap Watch - W24133
Ref. SSB409P1
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Stepping up in the same colour and case shape
The 8T63 inside this is worth understanding. Its chronograph hand does not sweep — it steps in sharp fifth-of-a-second increments, a meca-quartz mechanism that gives the reset a decisive, mechanical snap rather than the anticlimactic drift of a conventional quartz stopper. For a watch worn in a practical rather than ceremonial way, that distinction matters in use. The blue dial is layered and textured, reading differently under direct light than in shade, and the three-register layout keeps the chronograph functions legible without crowding the face. At 48mm lug to lug it sits flat on an average wrist rather than bridging it, and the NATO strap means the whole thing is easily swapped without tools. LumiBrite on the hands and indices is among the more capable luming treatments at this tier — bright initial charge, long hold.
- Reference
- SSB409P1
- Brand
- Seiko
- Case size
- 41mm
- Case thickness
- 12.03mm
- Lug width
- 22mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Blue
- Crystal
- Hardlex
- Bezel
- Fixed tachymeter
- Movement
- Quartz
- Calibre
- 8T63
- Functions
- Chronograph, Date, Small seconds, Tachymeter
- Water resistance
- 100m
- Bracelet / strap
- Fabric strap
- Strap colour
- Blue
- Clasp
- Buckle
- Lume
- LumiBrite
- Retailer
- F.Hinds
Additional specifications
- Lug-to-lug
- 48mm
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
Strengths
- 100m water resistance covers swimming and watersports
- 48mm lug-to-lug keeps the 41mm case wearable
- Luminous hands and markers for low light
- Sits in the lower half of 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 | SSB409P1 | 70003 | MK6096 |
|---|---|---|---|
| Price | £159 | £159 | £159 |
| Case size | 41mm | 41mm | 41.5mm |
| Water resistance | 100m | 100m | 100m |
| Movement | Quartz | Quartz | Quartz |
| Strap | Fabric strap | Stainless steel bracelet | Stainless steel bracelet |
| This watch | Closely matched | 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.
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?
Yes. It is quartz, so expect a battery change every two to three years at a jeweller.
What size strap does it take?
22mm. 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 48mm, which suits wrists from roughly 16.5cm (6½ 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.
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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