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Rotary Heritage 40mm Mens Watch Black
Ref. RGB10020/04
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Stepping up in the same dial colour
An octagonal case in gunmetal black PVD-coated stainless steel sits at 40mm wide and just over 8mm thick, giving it a notably slim, curved profile on the wrist. The textured black tapisserie dial carries applied baton hour markers and slim hands, with a date window completing the layout beneath a sapphire crystal. The integrated bracelet matches the case finish and closes with a milled folding clasp. Water resistance stands at 50 metres.
- Reference
- RGB10020/04
- Brand
- Rotary
- Collection
- Heritage
- Case size
- 40mm
- Case thickness
- 8mm
- Lug width
- 24mm
- Case material
- Black PVD
- Case shape
- Octagonal
- Dial
- Black
- Crystal
- Sapphire
- Movement
- Quartz
- Functions
- Date
- Water resistance
- 50m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Black
- Clasp
- Folding clasp
- 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 1 collection
This watch appears in the Rotary Heritage range (47).
Temporarily out of stock
Goldsmiths is not currently taking orders for this reference. Last listed as available on 4 September 2026. Stock is checked nightly and this page updates when it returns.
What the specifications mean
Strengths
- 40mm suits most wrists
- 8mm is unusually slim for a 40mm case
- Sapphire crystal, which resists scratching
- Sits in the lower half of Rotary's range as we list it
Worth knowing
- 50m suits rain and handwashing, not swimming
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 comparedWhat size strap does it take?
24mm. Any strap of that width will fit, and on most modern watches quick-release bars make the swap a two-minute job with no tools.
Is it a men's or women's watch?
Listed as men's, though at 40mm it sits in the range that suits anyone.
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