Zenith Surf automatic watch

Rare men's Zenith Surf with green dial and integrated steel bracelet. Crystal is in good condition, no major scratches or cracks. Case and original bracelet show signs of age and use. Bracelet fits to a wrist of about 19 cm thick and the clasp is not original. Crown is original. Service history is unknown, but the watch works fine. Date quick set works and the watch is running approximately +- 10 seconds per day.