It's exactly that, it unscrews. I've cracked them open in the past with a flatblade screwdriver and a small hammer.
Jewlers have a special key that fits the indents, turn it and the watch body comes free. Don't think I'd try and bodge a watch open, for sake of a new battery you could damage the back.
i used long nosed pliers held vertically, ends in 2 opposite indents - worked a treat
Ooh, cunning.
Maplin sell a tool for about £10, depends how valuable it is
Edit: £7 [url= http://www.maplin.co.uk/Search.aspx?criteria=watch ]http://www.maplin.co.uk/Search.aspx?criteria=watch[/url]
Thanks - had already tried needle nosed pliers without success. Found another set with smaller ends which fitted better and job done.
Your local non highstreet jeweler will do it for a tenner
Your local non highstreet jeweler will do it for a tenner
I just did it for £0 (already had the right cell in stock). Even including taking the picture, posting on here and finding the right tool it probably still took me less time than driving to the shop.

