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Zenith Chronomaster Sport 41mm Mens Watch Green
Ref. 03.3119.3600/56.M3100
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Stepping up in Zenith's range
The El Primero movement has been central to Zenith's identity since 1969, when the brand introduced one of the first automatic chronograph calibres and built it to run at a frequency high enough to time to a tenth of a second. The 3600 in the Chronomaster Sport is the direct descendant of that calibre, and the bezel's graduated track exists because the movement beneath it genuinely earns the claim: the central chronograph hand completes one revolution every ten seconds, which is what 1/10th of a second measurement looks like in practice rather than on paper. The green ceramic bezel and lacquered dial make this the most visually assertive version of the Sport, but the tricolour sub-dials at six, nine and twelve carry their own logic — each register is a different colour to separate the functions clearly under the kind of light where you actually need to read a chronograph. At 13.6mm thick for a column-wheel automatic chronograph, it wears closer to the wrist than this category usually manages, and the integrated three-link bracelet follows the case shape in a way that keeps 41mm from reading larger than it is. The exhibition caseback turns the movement into part of what you own, and with a 60-hour power reserve there is enough margin that the El Primero is still running when you reach for it on Monday morning.
- Reference
- 03.3119.3600/56.M3100
- Brand
- Zenith
- Collection
- Chronomaster
- Case size
- 41mm
- Case thickness
- 13.6mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Green
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- El Primero 3600
- Functions
- Chronograph, Date, Small seconds
- Water resistance
- 100m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Deployant clasp
- Lume
- Super-LumiNova
- Retailer
- Mappin & Webb
Additional specifications
- 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 (3,616), Stainless Steel Watches (3,157), Automatic Watches (1,753), Chronograph Watches (1,205), Sports Watches (793) and Green Dial Watches (436).
What the specifications mean
A mechanical watch for everyday wear.
Strengths
- 100m water resistance covers swimming and watersports
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
- Sits in the lower half of Zenith's range as we list it
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 | 03.3119.3600/56.M3100 | N3003.26X01.B01.R01 | 103926 |
|---|---|---|---|
| Price | £10,600 | £9,700 | £9,400 |
| Case size | 41mm | 41mm | 41mm |
| Water resistance | 100m | 100m | 100m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Rubber strap | Stainless steel bracelet |
| Power reserve | 60 hours | 65 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.
Is 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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