Speedmaster Moonphase 3576.50

The Omega Speedmaster Moonphase 3576.50 occupies a special place in the Speedmaster lineup, blending the legacy of the "Moonwatch" with the added complexity of a moonphase and date complication. This model pays tribute to Omega’s lunar heritage while offering a more intricate dial layout, making it a compelling choice for collectors who appreciate classic design with added horological interest. Its 42mm case preserves the iconic proportions of the Speedmaster Professional, ensuring wrist presence without straying from the original’s spirit.

Reference 3576.50 distinguishes itself from standard Speedmaster Professionals by featuring a sapphire crystal front and display caseback, revealing the hand-wound Caliber 1866. This movement is based on the legendary 1861 but adds moonphase and date functions, increasing both mechanical intrigue and value. The moonphase disc, with its detailed depiction of the lunar surface, is a key visual draw and a point of differentiation from other Speedmaster references.

Pricing is influenced by condition, completeness (box, papers, original bracelet), and dial aging—patina on the lume plots can be desirable to some buyers. The 3576.50 typically commands a premium over standard Speedmaster Professionals due to its added complications and sapphire features. When shopping, confirm the presence of the correct 1866 movement and ensure the moonphase mechanism functions smoothly, as servicing this complication can be more involved than on the standard chronograph.