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Rotary GB08021/04 Ultra Slim Two Tone Bracelet Watch - W13224
Ref. GB08021/04
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Rotary's Ultra Slim line has always been built around one proposition: how little a dress watch needs to be. At 7.4mm deep, this rectangular case sits beneath a cuff without announcing itself, and the two-tone gold PVD and steel bracelet keeps that restraint while giving the dial's black sunray guilloche something warm to play against. Applied indices catch light the way printed ones never do, and the sapphire crystal above them earns its place on a watch worn this close to shirtsleeves. The butterfly clasp on the seven-link bracelet fastens cleanly and lies flat at the wrist — the kind of detail that matters on something this slim, where a bulky clasp would undo the whole effect.
- Reference
- GB08021/04
- Brand
- Rotary
- Collection
- Ultra Slim
- Case size
- 28.5mm
- Case material
- Stainless steel
- Case shape
- Rectangular
- Dial
- Black
- Crystal
- Sapphire
- Movement
- Quartz
- Functions
- Date
- Water resistance
- 30m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Two-tone
- Clasp
- Butterfly clasp
- 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 7 collections
This watch appears in the Rotary Ultra Slim range (17), Back in Stock (4,797), Stainless Steel Watches (3,166), Watches Under 37mm (1,684), Women's Watches (1,609), Two-Tone Watches (480) and Rectangular & Square Watches (444).
Manufacturer’s guarantee
What the specifications mean
Strengths
- 28.5mm wears small and slips under any cuff
- Sapphire crystal, which resists scratching
Worth knowing
- 30m means keeping it away from water
Rotary GB08021/04 Ultra Slim Two alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | GB08021/04 | GW1152G2 | JWL05201 |
|---|---|---|---|
| Price | £169 | £169 | £159 |
| Case size | 28.5mm | 29mm | 28.5mm |
| Water resistance | 30m | 30m | 30m |
| Movement | Quartz | Quartz | Quartz |
| Strap | Stainless steel bracelet | Leather strap | Mesh bracelet |
| This watch | Closely matched | Closely matched |
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
No. At 30m it will survive rain and handwashing, but not submersion of any kind.
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?
Yes. It is quartz, so expect a battery change every two to three years at a jeweller.
Quartz, automatic and solar comparedIs it a men's or women's watch?
Listed as women's.
Cheapest place to buy
F.Hinds is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
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