Omega Speedmaster Professional 145.022-68 Transitional and Tropical, stainless steel wristwatch with black to brown color-change dial, round button chronograph, 12-hour and 30-minute registers, tachometer scale
Omega. A Rare Stainless Steel Chronograph Wristwatch
Model: Speedmaster Professional with Tropical dial
Reference: 145.022-68 SP
Case. Three-body, polished and brushed, screwed-down case back engraved with the Speedmaster logo, anti-magnetic protection cap, tachometer graduation on the black bezel to 500 UPH with DON lyre lugs, hesalite crystal.
Dial Turning Tropical with long baton indexes, stepped dial, outer 1/5th seconds track, subsidiary dials for the seconds, the 12-hour and 30-minute registers. Luminous white baton hands.
Movement. Cal. 861, copper-colored, 17 jewels, straight-line lever escapement, monometallic balance, shock absorber, self-compensating flat balance spring, index regulator.
Mvt Nr. 265XXXX
Diameter: 42mm Thickness: 13mm
The present watch is a mint example of a rare Speedmaster Professional reference 145.022-68 "Transitional". Transitional Speedmaster are fitted with the calibre 861 instead of the 321 but have the dial of a 321 caliber with applied logo,long indexes and is also featuring the “pie-pan” dial that has a clear step from the outer minute division ring. This particular example is even rarer because the dial is turning a gorgeous Tropical color. The deep dark brown dial is complimented by the long luminous markers, which have now gained a contrasting yellow shade. The lugs feature sharp facets and the crisp case back logo engraving add to the desirability of this example. The more common "Tropical" Speedmaster is the ref 145.022-69 with a pre-moon back but a flat painted logo dial. A Tropical 145.022-68 Speedmaster is a much rarer watch, this combo with a brown dial will be enjoyed by a collector for years to come.