Oris BC4 Small Second, Pointer Day

The Oris BC4 Small Second, Pointer Day, reference 01 645 7617 4154-07 8 22 58, has a 42.7 mm steel case with a see-through back, a steel bracelet at 22 mm lugs and water resistance to 100 metres. Under a sapphire crystal domed on both sides, the black dial shows small seconds, a date window and a central weekday hand. Its self-winding calibre 645 holds a 38-hour power reserve.