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Seiko SUR446P1 Two Tone Bracelet Watch - W25388
Ref. SUR446P1
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Stepping up in the same colour and case shape
The Neo Classic sits in an interesting position within Seiko's range: a dress-leaning design rated to a depth that most formal watches do not approach, with 8.4mm of thickness that lets it disappear beneath a cuff in a way a comparable diver or sports watch simply cannot. The 100-metre rating is there for life rather than sport — it means wearing it on holiday or through a rainstorm without a second thought, not planning a dive around it. The alternating brushed and polished surfaces carry across both case and bracelet without interruption, which gives the whole thing a coherence that two-tone can easily lose when case and strap are treated as separate problems. At 114 grams, the bracelet has enough presence on the wrist to feel considered rather than lightweight, and the three-fold clasp with its dual push-button releases keeps that profile low at the wrist. The 6N53 movement asks very little of its owner — a battery change roughly every three years, nothing more. For a watch kept in rotation with others, or one that sits unworn for weeks at a time, that is a practical argument that a mechanical equivalent at this size cannot make.
- Reference
- SUR446P1
- Brand
- Seiko
- Collection
- Neo Classic
- Case size
- 40.2mm
- Case thickness
- 8.4mm
- Lug width
- 20mm
- Case material
- Two-tone
- Case shape
- Round
- Dial
- Silver
- Crystal
- Sapphire
- Movement
- Quartz
- Calibre
- 6N53
- Functions
- Day-date
- Water resistance
- 100m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Two-tone
- Clasp
- Three-fold clasp
- Lume
- Luminous
- Retailer
- F.Hinds
Additional specifications
- Lug-to-lug
- 47.5mm
- Weight
- 114g
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 4 collections
This watch appears in Back in Stock (4,868), Silver Dial Watches (715), Two-Tone Watches (471) and Watch Price Drops (282).
Manufacturer’s guarantee
What the specifications mean
Strengths
- 100m water resistance covers swimming and watersports
- 8.4mm is unusually slim for a 40.2mm case
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
- Sits in the lower half of Seiko's range as we list it
Price history
This watch is currently at its lowest recorded price. It reached £199 on 9 November. Prices are checked every day, and we record any changes.
Seiko SUR446P1 Two Tone Bracelet alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | SUR446P1 | GS05475/56 | 70005 |
|---|---|---|---|
| Price | £150 | £150 | £149 |
| Case size | 40.2mm | 40mm | 41mm |
| Water resistance | 100m | 100m | 100m |
| Movement | Quartz | Quartz | Quartz |
| Strap | Stainless steel bracelet | Fabric strap | Leather strap |
| 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.
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 comparedWhat 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 47.5mm, which suits wrists from roughly 16.5cm (6½ 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
F.Hinds 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 lowest recorded price since we began tracking it. It's ranged between £150 and £199, today it's £150.
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