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Omega, Speedmaster Professional, No. 1744/1970, Ref. ST.
311. Made in a limited series of 1970 pieces in 2008,
sold June 12th, 2009.
Very fine and rare, asymmetric, water-resistant, stainless steel
wristwatch with round button chronograph, 12-hour and 30-minute
registers, black bezel with tachometer, Apollo hands for the 12-hour
and 30-minute registers and a stainless steel Omega link bracelet
with deployant clasp. Accompanied by a large red two-body thermo
protective case, two additional white NATO straps, tools, fitted box,
instruction booklet, numbered certificate, warranty and two extra links.
Three-body, solid, polished and brushed, black bezel with tachometer
graduated to 500 UPH, lyre lugs, integral crown and pusher guard,
screw-down back engraved with Speedmaster logo. Thermo case:
Two-body, red oxidized aluminum with 60-minute counter and two
chronograph pushers on the band.
White, zinc oxide-coated, with painted luminous baton indexes,
sunk subsidiary dials for the seconds, the 12-hour and 30-minute
registers, outer reserve for the minute/seconds and 1/5th seconds
divisions. Black and white luminous baton hands, luminous red
chronograph hand, luminous black Apollo hands for the 12-hour and
30-minute registers.
Cal. 1861, rhodium-plated, 18 jewels, straight-line lever escapement,
monometallic balance, shock absorber, self-compensating flat
balance spring, index regulator.

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