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Zenith Chronomaster Sport 41mm
Ref. 18.3100.3600/69.C920
Sits in Zenith’s upper tier here — more premium than three quarters of the Zenith watches we list, which start at £7,000.
Price range £7,000 to £28,000 across 44 Zenith watches in stock.The El Primero was among the first automatic chronograph movements ever made, launched in 1969, and Zenith has never really stopped developing it. The Calibre 3600 is the current high point of that line: it beats at 5Hz, which is fast enough to time to a tenth of a second, and the ceramic escape wheel and anchor run without lubrication, which is not a small thing in a movement asked to run for 60 hours between winds. The bezel scale is graduated to reflect that tenth-of-a-second capability directly — the chronograph hand completes a full rotation every ten seconds, so the markings are genuinely readable rather than decorative. Rose gold and a black ceramic bezel is a combination that could easily read as costume, but the tri-colour registers — the three subdials sitting in subtly different metallic tones against the white dial — pull it back toward something older and more purposeful, a visual language Zenith has used long enough that it reads as heritage rather than styling. At 41mm with a lug-to-lug of 46.8mm it will settle onto most wrists without overhang, and the triple-folding deployant in matching rose gold distributes the case weight across the strap rather than loading it onto the buckle point.
- Reference
- 18.3100.3600/69.C920
- Brand
- Zenith
- Collection
- Chronomaster
- Case size
- 41mm
- Case thickness
- 13.6mm
- Lug width
- 20mm
- Case material
- Rose gold
- Case shape
- Round
- Dial
- White
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- El Primero 3600
- Functions
- Chronograph, Date, Small seconds, Tachymeter
- Water resistance
- 100m
- Bracelet / strap
- Leather strap
- Strap colour
- Black
- Clasp
- Deployant clasp
- Lume
- Luminous
- Retailer
- Goldsmiths
Additional specifications
- Lug-to-lug
- 46.8mm
- Power reserve
- 60 hours
Manufacturer’s guarantee
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 100m it is rated for swimming and snorkelling, though not for 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.
How long does it run for when it's not worn?
About 60 hours fully wound — enough to survive a night off the wrist, but not a full weekend.
What size strap does it take?
20mm. 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.
Will it fit my wrist?
Lug-to-lug is 46.8mm, which suits wrists from roughly 16cm (6¼ inches) upward.
Lug-to-lug decides fit more than case diameter does.
Is it a men's or women's watch?
Listed as men's.
Cheapest place to buy
Goldsmiths is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
Who are Goldsmiths?
Goldsmiths has been selling watches in Britain since 1778 and is part of the Watches of Switzerland Group, which is listed on the London Stock Exchange. They are an authorised dealer, so a watch comes with the manufacturer’s own warranty.
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