Year of manufacture1970
OMEGA SPEEDMASTER JAPAN STEEL
Omega, "Speedmaster Professional", case No. 77178968, Ref. 3570.50. Made in a numbered edition in 2004 for the Japanese
Fine and rare, asymmetric, water-resistant, stainless steel
wristwatch with round button chronograph, registers, black
bezel with tachometer and a stainless steel Omega bracelet with
deployant clasp signed "Speedmaster Professional". Accompanied
by an Omega box, instruction booklet and warranty card.
Three-body, polished and brushed, lyre lugs, black tachometer
bezel, crown and pusher with integrated guard, screw-down case
back engraved: "Flight-Qualified By NASA For All Manned Space
Missions - The First Watch Worn On The Moon".
Four-color, gray, white, red and orange with luminous white
baton indexes, outer minute/seconds and 1/5th seconds divisions,
subsidiary dials for the seconds, the 12-hour and 30-minute registers.
Luminous white baton hands, orange seconds hand.
Cal. 1861, rhodium-plated, 18 jewels, straight-line lever escapement,
monometallic balance, shock absorber, selfcompensating flat