W100 M men's running stopwatch - Black



Made for
Looking for a watch that's both simple and waterproof? Our S-sized W100 watch is a perfect companion for your running sessions.


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Parameter measurementYour watch shows you the time and date while your stopwatch measures seconds..
WaterproofSuitable for swimming (5 ATM or 50 m).Buttons can be used underwater.
VisibilityBig numbers to make it easier to read
Water resistanceResistant to swimming pool water (chlorine), sea water (salt) and sweat.
Ease of useEasy setting with screen pictos and 2 buttons.
Warranty2 Years
Technical Informations

Time your outings
Time your performances with the split-timer function that shows 1 second to 59 minutes and 1 minute to 99 hours.
Set your sights high: big numbers for your performances
The screen displays your time in big numbers so that you can take it all in at a glance as you run.
Information / Concept / Technology
Wrist : 90.0% Rubber - Thermoplastic Rubber (TPR), Wrist : 10.0% Stainless steel Carcass : 90.0% Polycarbonate-Acrylonitrile Butadiene Styre(PC-ABS, Carcass : 10.0% Polymethyl Methacrylate (PMMA) Board : 70.0% Epoxy, Board : 30.0% Copper (CU)

Test Product
At Kalenji, we've been making watches specifically for sportsmen and women for the last 20 years. During development, each model undergoes more than 30 different tests in the laboratory as well as some tests in the field conducted by our teams of testers.


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W100 M men's running stopwatch - Black KALENJI
Used for 1 week or less
Purchased for Son's school residential trip - looks good, hasn't been yet. Purchased as cost was very good so wouldn't be a problem if it got damaged/lost whilst he is away
Response of the brand
Hi Joy,

Thank you for your feedback regarding the watch, I do hope that it is useful for his trip and he gets everything he wants out of the watch!

Kind Regards,

Joe Rainsford
Athletics Expert
Decathlon Giltbrook
Great watch
Used for 2 to 8 weeks
Does perfectly what’s suppose to do at a great price!!
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