Before it became known as the "Moon Watch", the Omega Speedmaster was a tool watch "For Men Who Reckon Time in Seconds." Reference CK2915 is one of the most sought after Speedys in the world, in production between 1957 and 1959, with this CK2915-2 dating back to 1958. The -2 is nearly identical to the -1, from its three register chronograph to the 38.5mm case, manual caliber 321 movement, and engraved tachymeter bezel. It also features the original broad arrow hands along with the oval "O" in Omega and the long-tailed "R" in "Speedmaster" that help differentiate it from later models — greatly increasing the scarcity. Available at auction, Bukowski's claims this example has been resting in a drawer for the past two decades and has been in the same family since it was originally purchased. The historic timepiece is estimated to fetch well over $100,000.