For all U models with a 44 mm diameter.
The DuoFlex consists of the two components:
With the quick-adjustment strap system you can quickly swap a silicone strap for another one without any tools. For example, if you are wearing a wetsuit while diving and you need a longer silicone strap. But thanks to the quick-adjustment strap system, you can also easily switch from a red silicone strap to a black one.
With the folding clasp’s strap-length quick adjustment, you can adjust the length of your silicone strap to your desired wearing comfort. For example when seasonal temperature variations result in changes to your wrist’s diameter.
Further information about the DuoFlex can be found here:Download Product Information (PDF) Download operating manual (PDF)