Breitling Unitime 2610

BREITLING Unitime About 1960 Ref 2610 Steel wristwatch, black dial, bezel graduated in 60-minute increments (changed), inner disc graduated in 24-hour increments, date window at 6 o'clock, self-winding mechanical movement, leather strap with modern signed pin buckle. Dial, case and movement signed. Diameter 36 mm