Got this electronic 0703-7090 (Elnix) in the post today from Yahoo Auction. Fortunately the watch started working with a new battery and the 3-faceted crystal is not in bad shape, but then I noticed the stretchy clasp on the bracelet (XLB141). I've not seen one like this before. It seems to have springs within the clasp to allow it to extend up to 1cm, which seems a really good idea either for large wrists or just when your wrists swell with heat or exercise. Now wondering how many other models this has been used on (excluding diver bracelet extensions). Has anyone else come across such a clasp?