I recieved this stopwatch some years ago from my grandfather as a gift, but I recently discovered that it has stopped working. It winds up, but when I press either button, nothing happens.
I've searched around the internet by the best of my abilities, but I can't seem to get a fix on the exact model.
My guess as for what year it was made, it'd be mid to late 60's.

Given that it's a relatively 'new' model (presumably) and that it is an a so-so condition, I'd just like to know if it is worth enough to bother taking it to a watchmaker to have it repaired.

Any help would be greatly appreciated!