Speedmaster Professional Moonwatch

The Omega Speedmaster Professional Moonwatch reference 3570.50.00 represents one of the longest-running and most recognisable configurations of the iconic Speedmaster line. Housed in a 42 mm stainless steel case and powered by the hand-wound calibre 1861, it pairs a classic black dial with the tri-compax chronograph layout that has defined the model since the 1960s. For collectors, this reference distils the Speedmaster Professional to its purest, most historically grounded expression.

The 3570.50.00 entered production in 1996 and remained in Omega's catalogue for nearly two decades, making it one of the most widely encountered Speedmaster Professional references among collectors. It succeeded earlier references in the long lineage of hand-wound Speedmasters that trace their heritage to the original 1957 Broad Arrow and the NASA-qualified models of the 1960s. The calibre 1861 at its heart is a refined descendant of the cal. 321 and cal. 861, retaining the column-wheel architecture and lateral clutch that have characterised the movement family across generations. Its extended production run means examples span a broad range of condition and provenance, sustaining consistent collector interest well after its discontinuation.