Oris BC4 Small Second, Pointer Day

The Oris BC4 Small Second, Pointer Day, reference 01 645 7617 4164-07 5 22 58FC, has a 42.7 mm steel case on a leather strap with 22 mm lugs, water resistant to 100 metres. Domed sapphire covers a black dial with a date window and a central weekday hand. Screws hold the see-through case back. Calibre 645 is self-winding, with small seconds and a 38-hour power reserve.