Tap the image to enlarge
Zenith Chronomaster Sport 41mm Mens Watch Blue
Ref. 03.3114.3600/51.M3100
See more premium optionsHide
Stepping up in Zenith's range
The Chronomaster Sport sits at the end of a very particular line of thinking. When Zenith introduced the El Primero in 1969 it was already running at 36,000 vibrations per hour, fast enough to time elapsed intervals to a tenth of a second rather than the fifth that most chronographs of the era managed. The 3600 calibre in this watch carries that same frequency, and the central chronograph hand sweeps the full dial once per minute, each second divided into ten legible segments. That is not a marketing claim about precision — it changes what the watch can actually do. The tricolour dial is the other inheritance, pulled from the De Luca and Rainbow references of the eighties and nineties, where Zenith made a signature of running the three sub-dials in contrasting metallic shades. Here they sit against a sunray-patterned blue, and in strong light the tonal shift between the 60-second counter at 3, the minute register at 6, and the small seconds at 9 becomes immediately readable rather than something to study. The bezel engraving — the 1/10th-of-a-second tachymeter graduation — reinforces that the watch was drawn for use, not display. The bracelet follows the same logic: brushed outer links for durability, polished inner links so it does not read as purely functional on the wrist. The sapphire caseback is worth mentioning because the 3600 is worth seeing. Column-wheel construction, in-house, with the characteristic El Primero finishing that Zenith has been refining for over fifty years.
- Reference
- 03.3114.3600/51.M3100
- Brand
- Zenith
- Collection
- Chronomaster
- Case size
- 41mm
- Case thickness
- 13.60mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Blue
- 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
- Goldsmiths
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 6 collections
This watch appears in the Zenith Chronomaster range (19), Stainless Steel Watches (2,833), Automatic Watches (1,417), Chronograph Watches (1,131), Blue Dial Watches (780) and Sports Watches (667).
Manufacturer’s guarantee
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
- 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 | 03.3114.3600/51.M3100 | 103926 | G0A43001 |
|---|---|---|---|
| Price | £9,900 | £9,400 | £11,400 |
| Case size | 41mm | 41mm | 42mm |
| Water resistance | 100m | 100m | 100m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Stainless steel bracelet | Leather strap |
| Power reserve | 60 hours | — | 50 hours |
| This watch | 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
Goldsmiths is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
More Zenith watches like the Chronomaster Sport
In stock, and close on style and price
