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Rotary RGB10005/04 Seamatic 300 GMT Automatic Bracelet Diver's Watch - W13306
Ref. RGB10005/04
Sits in Rotary’s upper tier here — more premium than three quarters of the Rotary watches we list, which start at £97.
Price range £97 to £329 across 156 Rotary watches in stock.The Seamatic 300 is Rotary's answer to a specific question: can a British heritage brand build a serious tool diver with a genuine GMT complication, at a size that reads as contemporary without tipping into oversized? The blue-on-blue bezel — rotating, two-tone — marks the 24-hour second timezone against a deep blue dial without the brasher contrast of the red-and-blue pepsi arrangement, which suits a watch that is trying to be useful rather than conspicuous. At 14mm thick for a 300-metre-rated case, this is not a slim watch, but it is not the slab that depth ratings of this kind usually demand either. The jubilee bracelet softens what could otherwise read as pure sportswear, and a 42mm case at that lug width sits with enough presence to carry the bezel without overwhelming a mid-sized wrist.
- Reference
- RGB10005/04
- Brand
- Rotary
- Case size
- 42mm
- Case material
- Two-tone
- Case shape
- Round
- Dial
- Blue
- Crystal
- Sapphire
- Bezel
- Bidirectional rotating
- Movement
- Automatic
- Functions
- GMT
- Water resistance
- 300m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Two-tone
- Lume
- Luminous
- Retailer
- Goldsmiths
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 Back in Stock (4,405), Automatic Watches (1,634), Blue Dial Watches (834), Sports Watches (729), Dive Watches (521) and Two-Tone Watches (446).
Manufacturer’s guarantee
Best of 2 retailers
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
- Second time zone for travelling
- One of Rotary's more premium watches
Price history
This watch is currently at its lowest recorded price. It reached £349 on 3 September. Prices are checked every day, and we record any changes.
Rotary RGB10005/04 Seamatic 300 GMT alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | RGB10005/04 | RA-AA0003R39B | 98B467 |
|---|---|---|---|
| Price | £329 | £385 | £399 |
| Case size | 42mm | 41.8mm | 41mm |
| Water resistance | 300m | 200m | 200m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Stainless steel bracelet | Stainless steel bracelet |
| Power reserve | — | 40 hours | 42 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.
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?
No. It is automatic — the motion of your wrist winds it, and there is no cell to replace.
Quartz, automatic and solar comparedIs it a men's or women's watch?
Listed as men's.
Cheapest place to buy
Goldsmiths at £329, against £349 at F.Hinds. 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 £329 and £349, today it's £329.
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