Tudor. A stainless steel automatic calendar bracelet watch
Oyster Prince Date Day, Ref:70170, Serial No.880689, Circa 1978
21-jewel AS Cal.882/83 automatic movement, sunburst silvered dial with applied black accented polished baton hour markers, black outer 1/5th second divisions with luminous dot five minute markers, polished baton hands with luminous inserts and centre seconds, magnified date aperture at 3, day aperture at 12, brushed and polished tonneau shaped case with screw down back and crown, fitted 78360 Rolex Oyster link bracelet with signed folding clasp stamped R10, case, dial and movement signed
37mm.