One of the reasons we love Sinn is for the way they engineer their watches to get very specific jobs done easily and without fuss. Their series of EZM timers ram this point home with watches made for specific jobs ? rescue pilots, fire brigades, and so forth. 
Their commitment to producing no-compromise tools extends beyond just the watches, and now covers adjustable diving straps. The Duoflex Diving Strap system, now designed to be used with Sinn?s U series divers, is Sinn?s entry into the adjustable clasp game.

Now, this system isn’t entirely new. Sinn introduced something like this back in 2017 as the accompanying strap for their EZM 12. Retrofitted here with endlink adapters meant to fit to the lugs of U series watch cases and a clasp that allows for fine adjustment, the Duoflex allows for easy strap swapping and adjustment on-the-fly, perfect for when you need to fit a dive watch over a wetsuit, the heat has caused your wrist to swell, or you?ve just eaten a particularly salty meal. The basic idea here is that the Duoflex strap can be easily attached to the watch head without tools, and then further adjusted at the clasp (5mm in either direction, according to Sinn), allowing for the ultimate in flexibility.  Quick adjustment via the clasp on a sports watch is a game changer. Bracelets and straps that require tools to finely adjust their length slow you down, and somehow never get that perfect fit. All the better that the strap can be mounted without the use...