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Zenith Chronomaster Sport 41mm Mens Watch Grey
Ref. 03.3120.3600/76.M3100
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 41 Zenith watches in stock.The Chronomaster Sport was built around one objective: to let El Primero 3600 do what no standard chronograph movement can. Running at 36,000 vibrations per hour, it tracks to a tenth of a second using a dedicated central hand — a function that existed in prototype form at Zenith decades before most houses had managed a reliable column-wheel. The Sport edition is the daily-wear expression of that capability, the one Zenith intends to be wound, knocked about, and used. The meteorite dial is not a decorative choice made to look interesting — the Widmanstätten crystal patterns formed over billions of years of cooling in space, and no two dials share them. Against that ground, the three overlapping sub-registers in white, silver, and grey read with unusual depth, their colours separating cleanly at a glance rather than asking the eye to work. The black ceramic bezel carries the 1/10th-of-a-second scale that makes the movement's capability legible at a distance. Through the exhibition caseback, the 3600 is worth the attention: 311 to 319 parts assembled to hold a 60-hour reserve while sustaining that frequency. The integrated bracelet and the included rubber strap offer two genuinely different characters for the same watch — one formal enough for a cuff, the other suited to whatever made the 100-metre rating seem worth having.
- Reference
- 03.3120.3600/76.M3100
- Brand
- Zenith
- Collection
- Chronomaster
- Case size
- 41mm
- Case thickness
- 13.6mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Grey
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- El Primero 3600
- Functions
- Chronograph, Date, Small seconds
- Water resistance
- 100m
- Bracelet / strap
- Rubber strap
- Strap colour
- Black
- Clasp
- Deployant clasp
- Lume
- Super-LumiNova
- Retailer
- Mappin & Webb
Additional specifications
- Lug-to-lug
- 47mm
- Power reserve
- 60 hours
Learn more about Zenith
Georges Favre-Jacot founded Zenith in Le Locle in 1865, aged twenty-two, with an idea that was radical for the Swiss industry: bring every trade needed to make a watch — movement, case, dial, hands — under one roof and one management. The integrated manufacture was largely his invention, and the Le Locle site he built is still in use.
The approach produced results at observatory trials, where Zenith accumulated more precision awards than any other manufacture. The name itself came from a calibre Favre-Jacot considered the summit of his work.
Its defining achievement is the El Primero of 1969, developed over seven years and announced in the same year as the Heuer-Breitling consortium's Calibre 11 and Seiko's 6139. It was an integrated automatic chronograph beating at 36,000 vibrations per hour, allowing measurement to a tenth of a second — a frequency almost nothing else matched for decades.
It nearly did not survive. When American owners ordered the mechanical tooling scrapped during the quartz crisis, a watchmaker named Charles Vermot hid the plans, presses, and cams in a walled-off attic. When demand for mechanical chronographs returned, Zenith could restart production because of him. Rolex used the El Primero in the Daytona from 1988 to 2000.
LVMH acquired Zenith in 1999.
- 1865
- Georges Favre-Jacot founds the integrated manufacture at Le Locle.
- 1969
- The El Primero automatic chronograph debuts at 36,000 vph.
- 1975
- Charles Vermot hides the El Primero tooling from destruction.
- 1988
- Rolex adopts the El Primero for the Daytona.
- 1999
- Acquired by LVMH.
Also in 7 collections
This watch appears in the Zenith Chronomaster range (19), Back in Stock (3,460), Stainless Steel Watches (2,531), Automatic Watches (1,573), Chronograph Watches (914), Sports Watches (696) and Grey Dial Watches (193).
What the specifications mean
A mechanical watch for everyday wear.
Strengths
- 100m water resistance covers swimming and watersports
- 47mm lug-to-lug keeps the 41mm case wearable
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
- One of Zenith's more premium watches
Zenith Chronomaster Sport alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | 03.3120.3600/76.M3100 | 81020-11-431-11A | 3201-1200 |
|---|---|---|---|
| Price | £16,100 | £15,800 | £16,000 |
| Case size | 41mm | 42mm | 40mm |
| Water resistance | 100m | 100m | 120m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Rubber strap | Stainless steel bracelet | Stainless steel bracelet |
| Power reserve | 60 hours | 46 hours | 72 hours |
| 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?
Yes. At 100m it is rated for swimming and snorkelling, though not for 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 comparedHow 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.
Will it fit my wrist?
Lug-to-lug is 47mm, which suits wrists from roughly 16cm (6¼ inches) upward.
Lug-to-lug decides fit more than case diameter does.
How to size a watch to your wristIs it a men's or women's watch?
Listed as men's.
Cheapest place to buy
Mappin & Webb is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
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