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Seiko 4R Red 'Shog-urai' Diver 41.7mm Mens WatchSave £20

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Seiko

Seiko 4R Red 'Shog-urai' Diver 41.7mm Mens Watch

Ref. SRPL11K1

Among our 186 Seiko watchesThis watch£560
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Stepping up in Seiko's range

Price range £110 to £3,550 across 186 Seiko watches in stock.

A hybrid design drawing on two of Seiko's most recognisable diver silhouettes, the SRPL11K1 wears its angular geometry deliberately. The steeply angled lugs sit across a 41.7mm stainless steel case, 12.3mm thick with a 49.5mm lug-to-lug span, fitted with a screw-down crown and screw case back. The unidirectional rotating bezel carries a LumiBrite pip, while the red dial pairs pointed hands and index markers — all lumed — with a date window positioned between four and five o'clock. A stainless steel bracelet with three-fold clasp and dive extender completes the watch, rated to 200 metres. The 4R35 automatic runs at 21,600vph with a 41-hour power reserve.

Reference
SRPL11K1
Brand
Seiko
Collection
Prospex
Case size
41.7mm
Case thickness
12.3mm
Lug width
20mm
Case material
Stainless steel
Case shape
Round
Dial
Red
Crystal
Hardlex
Bezel
Unidirectional rotating
Movement
Automatic
Calibre
4R35
Functions
Date
Water resistance
200m
Bracelet / strap
Stainless steel bracelet
Strap colour
Silver
Clasp
Three-fold clasp
Lume
LumiBrite
Retailer
F.Hinds
Additional specifications
Lug-to-lug
49.5mm
Power reserve
41 hours
Weight
158g
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.

All Seiko watches

Also in 6 collections

This watch appears in the Seiko Prospex range (32), Stainless Steel Watches (3,088), Automatic Watches (1,763), Sports Watches (794), Dive Watches (567) and Watch Price Drops (290).

Manufacturer’s guarantee

Best of 2 retailers

Price history

This watch is currently at its lowest recorded price. It reached £580 on 5 September. Prices are checked every day, and we record any changes.

£580£56010 August

Seiko 4R Red 'Shog-urai' Diver alternatives

Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.

4R Red 'Shog-urai' Diver 41.7mm Mens Watch compared with 2 alternatives from other brands
SpecificationThis watch4R Red 'Shog-urai' Diver 41.7mm Mens WatchSRPL11K1BulovaArchive Series 98A325 MIL-SHIPS Blue Watch - Special Edition - W0937498A325CasioG-SHOCK GM-B2100BD-1AER Solar Bluetooth Black IP Bracelet Watch - W17649GM-B2100BD-1AER
Price£560£599£549
Case size41.7mm41mm44mm
Water resistance200m200m200m
MovementAutomaticAutomaticAutomatic
StrapStainless steel braceletFabric strapStainless steel bracelet
Power reserve41 hours60 hours
This watchClosely matched
  • Wears larger

Your new watch

Frequently asked questions, and things you should know about this watch

Can I swim with it?

Yes. At 200m it is rated for swimming, snorkelling and recreational diving.

Water resistance explained

Will the glass scratch?

It resists most everyday knocks. Hardlex is a hardened mineral glass — tougher than standard mineral, softer than sapphire.

Sapphire, mineral and acrylic compared

Does it need a battery?

No. It is automatic — the motion of your wrist winds it, and there is no cell to replace.

Quartz, automatic and solar compared

How long does it run for when it's not worn?

About 41 hours fully wound — enough to survive a night off the wrist, but not a full weekend.

What 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 49.5mm, 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 wrist

Is it a men's or women's watch?

Listed as men's.

Cheapest place to buy

F.Hinds at £560, against £580 at Mappin & Webb. Two UK retailers stock this reference.

Has the price changed recently?

It's currently at its lowest recorded price since we began tracking it. It's ranged between £560 and £580, today it's £560.

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