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Description

The Cestrian CO-SWS001 Ocean Series GMT combines dependable dive-watch performance with the practicality of a second time-zone function. Designed around Cestrian’s philosophy of purpose-driven watchmaking, it delivers a balanced combination of durability, legibility, and versatility, making it suitable for everyday wear, underwater adventures, and international travel.

Reliable Automatic GMT Movement

At its core is the NH34 automatic GMT movement, selected for its proven performance and ease of servicing. The GMT function allows you to track a second time zone with clarity and precision, making this timepiece a practical companion for frequent travellers and those who work across different time zones.

Robust Stainless Steel Construction

The solid stainless-steel case is built to withstand daily wear and demanding conditions. A screw-down crown, sapphire crystal, and 200 metres of water resistance provide the durability and protection expected from a capable dive watch.

Silver-White Dial with Refined Metallic Finish

The silver-white dial delivers a clean, technical aesthetic through a specialised galvanic finishing process, creating a crisp metallic surface with refined light reflection.

Applied indexes and polished nickel hands provide clear daytime readability, while Swiss Super-LumiNova ensures dependable visibility in low-light conditions. The orange-tipped seconds hand and luminous GMT hand introduce subtle contrast, enhancing functionality while preserving the watch’s understated, balanced appearance.

Durable Stainless Steel Bracelet

A fully brushed stainless-steel bracelet completes the design, offering lasting durability and everyday comfort. The secure deployment clasp provides a dependable fit, while the practical micro-adjustment allows convenient adjustments throughout the day.

Built for Adventure & Travel

The Ocean Series GMT is designed with longevity, usability, and dependable performance at its core. Its reliable automatic GMT movement, robust construction, refined silver-white dial, and practical bracelet make it a versatile companion for everyday life and travel.

Cestrian Ocean Series GMT β€” technical precision, understated style, and adventure-ready performance without unnecessary compromise.

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Product Specification

 Frequently Asked Questions 

 Are your watches genuine? 

We sell only 100% genuine watches, sourced directly from the brands or their authorised distributors and channels. Every watch comes with its official box, documentation, and a full manufacturer’s warranty.

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  • 5 stars: 13 (87%)
  • 4 stars: 2 (13%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
P
Paul O.
Lovely watch if you like face colour.

The watch is well made, looks really nice on, the strap and clasp are also very nice looking and the clasp is the business. Keeps really good time. The downside for me is the face colour, the green looks not as intense in the middle,.

N
N Bhatt

Update after checking the watch against an atomic clock: the watch is running consistently 8 seconds/day fast. 16 seconds on the second day after 48 hrs and 24 seconds fast after 72 hours. That is excellent for this movement and for this level of watch and price point.Incredible Value for the Money! I only just got this watch today so time will tell but at first blush and on first wear this watch is a 10/10 for what you pay. I have far more expensive watches than this but this watch stands up in terms of features offered on paper - reliable automatic movement, sapphire crystal, quality sold steel band with secure clasp and micro adjustments, etc. - and in person it comes through. Looks many, many more times what it costs. I’m currently surveying the timekeeping and will report back on that and its durability. I did buy because I live by the ocean and wanted something I could use for swimming, bike rides, gym without stressing about dinging up a $8k watch. This thing looks like it belongs alongside those watches in my watch box…almost. But it’s pretty close!It sits pretty high on the wrist as it’s a thick watch. I was impressed though that for a 42 mm watch it doesn’t wear too large in terms of diameter and how it looks.So far it’s super comfortable to wear, too. I like the weight and the bracelet is very natural feeling.The blue fumΓ© dial is gorgeous and I like that it will go with both black and blue based outfits.Overall, I love this watch more than I’d expected to, so far anyway!

C
Cliente Amazon
Cestrian ocean series

Orologio robusto e ben rifinito, anche molto preciso, il mio esemplare marcia con -2 secondi al giorno.

p
patrick
Great quality micro brand watch

I thought I'd give this micro brand a look as I buy alot of watches. And I'm glad I did.this watch is superb every thing about the watch screens quality.NH movement sapphire crystal amazing dial I picked up the yellow one nice!!! Really nice strap with on the fly adjustment. Everything lines up too and don't forget the 200 m plus screw down crown. I'd say it on par with my citizen watches that cost three times as much.

n
nigel james
Very acceptable watch

Nice watch, bought when it was on offer at Β£148.. level of finish is very good but done to a price.. where the brushed edge meets the polished there is no champher so dont expect that level of detail.. dial is very good. Bracelet is good and has possibly way to many links. also has an on the fly adjustable clasp. even at the higher price of Β£175 is good value

C
Calimero
Cestrian GMT

Belle montre tout en acier 316L, superbe cadran, etanche a 200m, verre saphir, mouvement NH 34 GMTde Seiko qui a largement fait ses preuves. Un rapport qualitΓ© prix excellent a 200€ voir moins . Seul bΓ©mol, cet une grosse montre donc attention au petit poignet de 17cm et moins

m
mh
ok

belle montre, mais je met 4 etoiles par manque de date

H
Hamza Ismaeel

Best Gmt. Nh34 movement. Sapphire 42 mm with an excellent lug to lug profile, excellent bracelet, better than a rolex Gmt. Dont waste money on a swiss or seiko gmt. Buy this and save ur money.

M
Miguel
Un reloj muy elegante con un gran calibre

​El reloj es una autΓ©ntica pasada, se nota un gran cuidado en los detalles, como que el logo estΓ© integrado en el indicador de las 12. AdemΓ‘s de contar con un armis con eslabones macizos, tiene liberaciΓ³n rΓ‘pida y microajuste sin necesidad de herramientas. Mi unidad tiene una precisiΓ³n de +3 segundos/dΓ­a, lo que es impresionante, y una carga de aproximadamente 42 horas. El reloj es precioso, con ese blanco nΓ‘car que segΓΊn la luz se ve color plata, y el bisel giratorio es muy suave y firme. Estoy encantado

S
Shane
Amazing value

Great quality watch that punches way above its price. Looking into other pieces from them.

T
Tony Webb
Nice

Nice watch fir the price, quality bracelet

c
carlos a
Absolutamente recomendable!!

Una pieza excelente. Funcional, precisa, resistente, con un fantΓ‘stico diseΓ±o. Realmente un reloj de primerΓ­sima calidad a precio muy accesible.

H
Happygirl
The GMT That Punches Far Above Its Price Point

I travel for work β€” usually two or three time zones a month β€” and this is the first GMT I've owned that I genuinely use rather than just look at. The independent hour hand makes adjusting local time a five-second operation, which sounds trivial until you've spent years doing the mental arithmetic with a regular three-hander.The blue fumΓ© dial deserves its own paragraph. Properly deep navy in the middle, fading to nearly black at the edges, and the way it catches light at different angles makes it look like a much more expensive watch. I've had it on my wrist next to pieces costing four times as much, and it doesn't feel out of place.If you're on the fence about whether you'd actually use a GMT β€” get one and find out. This is a good place to start.

A
Awais Muhammad
Excellent Product. Value for money.

Yellow GMT was a bit of a punt for me, but I've worn it constantly since it arrived. The galvanic finish on the dial gives the yellow real depth β€” it's not a flat fashion-watch yellow, more an amber that catches light differently through the day.The Seiko NH34 GMT inside is the headline feature for me. It's a true GMT with an independently jumping hour hand, so you can change local time without losing track of home or UTC time, and the bi-directional 24-click bezel lets you read a third zone at the top. Setting it up is straightforward, and the click action of the bezel feels properly tactile.Blue lume on the GMT and seconds hands against green lume on the markers is a nice detail too β€” makes the GMT readout instantly distinct in low light. 200m WR, sapphire with triple AR, 316L bracelet with quick release. Β£175 and I genuinely don't know how they're hitting that number

L
Lyu
What above my expectations...Great watch...

I can say that I'm very very happy and glad I did make decision to buy exactly this watch. I did watch review in the previous version, and I found some not very refined places around the watch, but this version is different level. Amazing finish, absolutely beautiful dail, everything is lined up properly, braslet is absolutely pleasure and the crown is exactly how spouse to be. Well done guys. Looked and feels way above the price. This is my first Cestrian and will not be last for sure. I'm looking to buy a Master Series V3 and I definitely will do.