Rolex: A 1970s diver s watch Oyster Perpetual Submariner model 5513, stainless steel case, Rolex signed calibre 1520 automatic movement, 1978 from serial number between lugs, round black dial with lume plots and baton hour markers, lume-filled Mercedes hands, centre seconds hand with lume plot, black bezel with count-up scale, screw-down crown with coronet, on a stainless steel Oyster bracelet strap, no box and papers (Case: 39mm excluding crown)