Omega 145.022-69 ST Vintage Speedmaster Transitional c. 1969 (31635)

31635 Omega 145.022-69 ST Speedmaster Pre-Moon 145 022 69 ST 14502269, stainless steel HF case is in excellent condition on a stainless steel Omega bracelet (1171 with 633 end links), original bezel is also very clean, manual wind Omega caliber 861 movement, original black dial is in exceptional condition with all original tritium lume present and unaltered, 12-hour chronograph, 28 mil serial (1969), diameter: 42mm, thickness: 14mm, Excellent Condition.


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More about Omega 145.022-69 ST Vintage Speedmaster Transitional c. 1969

This is a vintage c. 1969 stainless steel Omega Speedmaster Pre-Moon, 145.022-69 ST. It has an integral stainless steel Omega 1171 bracelet with 633 end links and an acrylic crystal. It has a solid screw-down case back engraved with the Pre-Moon Speedmaster logo. It has round chronograph pushbuttons and a winding crown protected by a crown guard. There is a black tachymeter to 500 UPH on the bezel. The bezel has the serif on "70" which is correct for pre-1970 Speedmaster. The 42mm diameter solid three-body case, integral lugs, and bracelet are polished/brushed. The original dial is black with the original luminous baton hands and creamy hour marker indices. There is an outer 1/5 seconds track, and a white central chronograph hand. There is a constant seconds subsidiary dial at 9 o'clock, a 12-hour sub dial at 6 o'clock, and a 30-minute sub dial at the 3 o'clock position. It's water resistant to 30 meters/100 feet, and the 14mm thick case, movement, and dial are all signed.

The mechanical manual winding Omega caliber 861 movement is copper-colored, with a shock absorber mechanism. It's constructed with 17 jewels, a straight-line lever escapement, and a monometallic balance that's adjusted for temperature and 5 positions. It includes a self-compensating flat balance spring, and an index regulator.