OMEGA (Chronograph / Seamaster) circa 1973 Sporty 1970s tonneau-shaped steel chronograph with screw-down back with 'Seamaster' logo (signed and numbered). Black dial (vintage) with 3 counters (seconds at 9 o'clock, minutes at 3 o'clock and hours at 6 o'clock). Luminescent hands and orange second hand, tachymeter scale. Movement: Hand-wound mechanical caliber signed OMEGA 861 Swiss. Diam. 38mm. Condition: Good condition.