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Rotary GB05430/27 Seamatic Automatic Diver's Watch - W13169
Ref. GB05430/27
Sits in Rotary’s upper tier here — more premium than three quarters of the Rotary watches we list, which start at £76.
Price range £76 to £299 across 181 Rotary watches in stock.The Seamatic is Rotary's case for a serious diver at an accessible point in the market — a 300m-rated watch with a black ceramic unidirectional bezel, screw-down crown with guard, and a Miyota 8215 movement that has earned its reputation for reliability across the industry. What distinguishes it from the crowd of similarly specified divers is the yellow dial. Paired with open-worked hands carrying black detailing, it reads clearly at depth and creates an immediate visual character on the surface. At 14mm thick it is not a slim watch, but that is consistent with what it is built to do, and the three-link bracelet with diver's deployant clasp keeps it composed on the wrist.
- Reference
- GB05430/27
- Brand
- Rotary
- Case size
- 42mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Yellow
- Crystal
- Sapphire
- Bezel
- Unidirectional rotating
- Movement
- Automatic
- Calibre
- Miyota 8215
- Functions
- Date
- Water resistance
- 300m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Deployant clasp
- Lume
- Luminous
- Retailer
- F.Hinds
Learn more about Rotary
Moise Dreyfuss started Rotary in La Chaux-de-Fonds in 1895. Within a generation his sons Georges and Sylvain had opened a London office and begun exporting to Britain, which turned out to be the decision that defined the company: Britain became, and remains, Rotary's most important market.
The winged wheel logo arrived in 1925 and has barely changed since. It became familiar enough in British high streets that the brand is widely taken for British, despite the Swiss origin.
Rotary supplied watches to the British Army, and the wartime and post-war association gave it a foothold in a market where an affordable, dependable Swiss watch was exactly what most buyers wanted.
The family held the company for over a century, making it for a long time the oldest family-owned Swiss watchmaker still trading. Ownership passed to Hong Kong's Citychamp in 2014, and in February 2025 to the UK's Peers Hardy Group.
The modern range sits at the accessible end — quartz and automatic dress watches, divers and chronographs, with the Henley, Windsor and Legacy lines carrying the collection.
- 1895
- Founded in La Chaux-de-Fonds by Moise Dreyfuss.
- 1920s
- Georges and Sylvain Dreyfuss begin exporting to Britain.
- 1925
- The winged wheel logo is introduced.
- 2014
- Acquired by Citychamp after more than a century in family hands.
- 2025
- Bought by the UK's Peers Hardy Group.
Also in 6 collections
This watch appears in Stainless Steel Watches (3,102), Automatic Watches (1,425), Sports Watches (714), Dive Watches (494), Automatic Watches Under £500 (322) and Dive Watches Under £300 (109).
Manufacturer’s guarantee
What the specifications mean
A mechanical watch built to be worn hard and got wet.
Strengths
- 300m water resistance, rated for actual diving
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
- One of Rotary's more premium watches
Compare alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | GB05430/27 | RA-AC0Q10N | SRPD57K1 |
|---|---|---|---|
| Price | £299 | £299 | £299 |
| Case size | 42mm | 39.9mm | 42.5mm |
| Water resistance | 300m | 200m | 100m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Silicone strap | Stainless steel bracelet |
| Power reserve | — | 40 hours | 41 hours |
| This watch |
|
|
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 300m it is rated for swimming, snorkelling and recreational diving.
Will the glass scratch?
Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.
Does it need a battery?
No. It is automatic — the motion of your wrist winds it, and there is no cell to replace.
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 new, at £299. 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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