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Rotary GS08013/01 Ultra Slim Black Leather Strap Watch - W13136
Ref. GS08013/01
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Stepping up in the same colour and case shape
At 5.7mm, this is one of the flattest watches in Rotary's Ultra Slim line, and that thinness is the whole of the proposition: it disappears under a shirt cuff in a way that most dress watches cannot manage, leaving only the gold case edge visible when the sleeve rides up. The silver guilloché dial with Roman numerals and dauphine hands sits firmly in the tradition of British formal dressing — legible without being brash, and well-matched to the warm gold PVD case. At 38mm, it wears closer to a classic gentleman's size than to the broader proportions that have dominated recently, which makes it an easy choice for anyone who finds most current dress watches oversized.
- Reference
- GS08013/01
- Brand
- Rotary
- Collection
- Ultra Slim
- Case size
- 38mm
- Case thickness
- 5.7mm
- Case material
- Gold PVD
- Case shape
- Round
- Dial
- Silver
- Crystal
- Sapphire
- Movement
- Quartz
- Functions
- Date
- Water resistance
- 50m
- Bracelet / strap
- Leather strap
- Strap colour
- Black
- Clasp
- Buckle
- 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 the Rotary Ultra Slim range (17), Back in Stock (4,405), Leather Strap Watches (942), Silver Dial Watches (653), Gold Watches (604) and Dress Watches (486).
Manufacturer’s guarantee
What the specifications mean
A slim watch on leather, made for wearing with a shirt.
Strengths
- 38mm suits most wrists
- 5.7mm is unusually slim for a 38mm case
- Sapphire crystal, which resists scratching
Worth knowing
- 50m suits rain and handwashing, not swimming
Rotary GS08013/01 Ultra Slim Black alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | GS08013/01 | BU9750 | MK4916 |
|---|---|---|---|
| Price | £189 | £189 | £179 |
| Case size | 38mm | 38mm | 38mm |
| Water resistance | 50m | 50m | 50m |
| Movement | Quartz | Quartz | Quartz |
| Strap | Leather strap | Stainless steel bracelet | Stainless steel 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?
Showering yes, swimming no. 50m covers splashes and brief immersion, but a swimming stroke generates well above the pressure that figure describes.
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 men's, though at 38mm it sits in the range that suits anyone.
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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