Zenith Defy automatic watch

A rare Zenith Defy model that was only produced for a short time with the original Gay Freres steel bracelet. Bracelet fits a wrist of about 20 cm thick and the diving extension gives it about a couple of centimeters more length. Two-tone dial is in good condition. Case has signs of age and use and the crown is screw-down. There is a slight engraving on the caseback. Service history is unknown, but the watch works well. Date changes and the watch is running approximately +- 10 seconds per day.