Baume & Mercier Riviera automatic watch

A really high-quality Baume & Mercier automatic watch with exceptionally thin case, which makes the watch very unnoticeable on the wrist. Case and integrated steel bracelet show signs of age and use. Bracelet fits a wrist of approximately 19 cm in thickness. Original crown is screw-down. Service history is unknown, but the watch works well. Date quick set works and the watch is running approximately +- 10 seconds per day.