Omega Speedmaster 176.002

OMEGA Speedmaster Professional Mark III chronograph reference 176.002, Switzerland around 1972, self winding, solid stainless steel case, screwed down case back with sea horse logo abraded, original bracelet with deployant clasp reference 1162, black dial with tritium-indices, tachometer graduation, 12 hour-counter, 24 hour-display, copper coloured movement calibre 1040, 22 jewels, measures approx. 52 x 41 mm, length approx. 20 cm, signs of use due to age, condition 3