[Election Grand Prix] gifted to my grandfather by his bride on their wedding day in 1948.

Just looking for advice on whether to get this watch serviced/repaired. I’m told it doesn’t work and don’t want to attempt winding it in case I cause further damage. And yes this thing is TINY which was apparently fashionable at the time. I can’t tell what metal the body and strap are made from either. If anyone has any suggestions I would be glad to hear them - they do seem to have resisted tarnishing quite well. Under the whiter light there appears to be gold, silver and rose colouring - gold plated maybe?