Omega Speedmaster Dark Side of the Moon Co-Axial Chronometer Chronograph

Case: Black ceramic, polished, 44.25mm in diameter. Chronograph pushers at 2 and 4 o’clock. Water resistant to 50 meters. Signed.

Dial: Black zirconium oxide ceramic dial. Luminous markings and hands. Date window at 6 o’clock. Subdials for small seconds and thirty-minute counter at 9 and 3 o’clock. Sapphire crystal. Engraved on the case back is “Dark Side of the Moon.” Signed.

Movement: Self-winding Omega mechanical Co-Axial caliber 9300. Rhodium-plated. 54 jewels. Hours, minutes, small-seconds, chronograph functions. Power reserve of 60 hours. Signed.

Reference: O31192445101003

Case Number: 86735xxx.

Diameter: 44.25mm. Thickness: 16mm.

Circa: 2014.

Condition: Like new, presented with original presentation box, papers, and alternate strap.
 
More about Omega:

Launched in 1957 as a sport and racing chronograph, the Omega Speedmaster has become one of the most well-known chronograph models ever. The first Speedmaster model was the reference 2915, featuring a distinctive luminous broad-arrow shaped hour hand. It was outfitted with the caliber 321, which would be used until 1968, when it was replaced by the caliber 861.

Starting in 1962, NASA began testing a series of chronograph watches from various brands (including Breitling, Longines, Rolex, and Omega) for their astronauts to wear to space. Only three watches passed the first round of “Qualification Test Procedures” and went on to final stages of testing. Omega’s Speedmaster chronograph was the only model to pass final testing, and went on to space. Following this event, Omega added the word “Professional” to the dials of their Speedmaster models, and gave them a new reference number – 145.012.

The present reference is Omega’s first Speedmaster to be produced in ceramic, and is, in fact, crafted from a single block of the material. On its case back, ZrO2 is engraved to make the distinction.