Oris Frank Sinatra Small Second, Date

The Oris Frank Sinatra Small Second, Date, reference 01 643 7571 4061-07 5 19 98FC, has a steel case 39 mm wide and 40 mm long, water resistant to 30 metres. Flexible 19 mm lugs connect the case to a leather strap, with a see-through back at the rear. Beneath domed sapphire, a silver dial carries small seconds and a date window. Calibre 643 is self-winding and delivers a 38-hour power reserve.