Here I offer a Citizen Crystron 4-068351 / 43-2237 Cal. 7312 Mens Watch 1970' (Repair / Parts).
Please look at the watch and the conditions the watch is in before bidding on the watch. 

Citizen Crystron 4-068351 / 43-2237 Cal. 7312 Mens Watch 1970' (Repair / Parts)
This is a nice watch. 
Watch is not running, even after a battery change.
The case and crystal have markings (see pictures). The crystal has a crack and needs to be replaced.
Can't get the caseback to close.
So it's being sold as is for repair or parts.

Diameter: 36mm
Lugs: 18mm

Price is for the watch. 

You can check out my other listings for other interesting watches, watch parts and watch accessories.