Kensington Watches
Seiko 5 Sports SKX GMT Sky Blue Silver Cloud 42.5mm Mens Bracelet Watch

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Seiko

Seiko 5 Sports SKX GMT Sky Blue Silver Cloud 42.5mm Mens Bracelet Watch

Ref. SSK033K1

Among our 186 Seiko watchesThis watch£420
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Stepping up in Seiko's range

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

A silver-white dial with dot indices sits beneath a Hardlex crystal fitted with a cyclops magnifier over the date window. The bi-colour bezel — split between blue and black — rotates to display a full 24-hour scale, working alongside the dedicated GMT hand to read a second time zone at a glance. LumiBrite coats both hands and indices for low-light legibility. The stainless steel case measures 42.5mm across and 13.6mm thick, with a 46mm lug-to-lug span. Inside, the 4R34 calibre runs at 21,600vph with a 41-hour power reserve and hacking seconds. A five-row beads-of-rice bracelet with a push-button three-fold clasp completes the watch, which is water-resistant to 100 metres.

Reference
SSK033K1
Brand
Seiko
Case size
42.5mm
Case thickness
13.6mm
Case material
Stainless steel
Case shape
Round
Dial
Silver
Crystal
Hardlex
Bezel
Rotating
Movement
Automatic
Calibre
4R34
Functions
GMT, Date
Water resistance
100m
Bracelet / strap
Stainless steel bracelet
Strap colour
Silver
Clasp
Three-fold clasp
Lume
LumiBrite
Retailer
F.Hinds
Additional specifications
Lug-to-lug
46mm
Power reserve
41 hours
Weight
159g
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 5 collections

This watch appears in Stainless Steel Watches (3,088), Automatic Watches (1,763), Silver Dial Watches (702), Automatic Watches Under £500 (336) and GMT Watches (245).

Manufacturer’s guarantee

Best of 3 retailers

What the specifications mean

A mechanical watch for everyday wear.

Strengths

  • 100m water resistance covers swimming and watersports
  • 46mm lug-to-lug keeps the 42.5mm case wearable
  • Luminous hands and markers for low light
  • Second time zone for travelling
Best forSwimmingTravelEveryday wear

Price history

This watch is currently at its lowest recorded price. It reached £430 on 5 September. Prices are checked every day, and we record any changes.

£430£42010 August

Seiko 5 Sports SKX GMT alternatives

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

5 Sports SKX GMT Sky Blue Silver Cloud 42.5mm Mens Bracelet Watch compared with 2 alternatives from other brands
SpecificationThis watch5 Sports SKX GMT Sky Blue Silver Cloud 42.5mm Mens Bracelet WatchSSK033K1MaseratiR8821108053 Potenza Automatic Black Leather Strap Watch - W81154R8821108053Roamer984985 41 85 20 Searock Master Bracelet Watch - W60270984985 41 85 20
Price£420£419£429
Case size42.5mm42mm42mm
Water resistance100m100m100m
MovementAutomaticAutomaticAutomatic
StrapStainless steel braceletLeather strapStainless steel bracelet
Power reserve41 hours44 hours
This watchClosely matchedClosely 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 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.

Will it fit my wrist?

Lug-to-lug is 46mm, 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 wrist

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

Listed as men's.

Cheapest place to buy

F.Hinds at £420 is the cheapest of 3 UK retailers, against £430 at the dearest — a difference of £10.

Has the price changed recently?

It's currently at its lowest recorded price since we began tracking it. It's ranged between £420 and £430, today it's £420.

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