Parameter measurement Featuring dual time zone, stopwatch, back-lighting, alarm, date. Coaching Program your training using its countdown function with 5 split-timers. Waterproof No problem for watersports: Your watch is waterproof to 10 ATM. Customisation Personalise your watch: select your strap colour (extra option)! Water resistance Go all out: your watch is resistant to salt, pool water and perspiration. Durability Thanks to its mineral glass and metal crown, your watch is scratch-resistant. Easy assembly / dismantling Change your strap easily with the exclusive slide system, no tools required. Ease of use Easy to adjust, with the icons on the screen.