The Omega Speedmaster Moonwatch Buying Guide: Every Reference, the Calibre 3861, and What Pre-Owned Actually Costs
The complete 2026 Omega Speedmaster Professional Moonwatch buying guide. Every reference decoded: the current Calibre 3861 family (310.30.42.50.01.001 Hesalite, 310.30.42.50.01.002 Sapphire, 310.30.42.50.04.001 White Dial), the 2026 Reverse Panda releases (steel and Moonshine Gold), the previous-generation Calibre 1861 lineup, vintage 145.022 / 145.012 / 105.012 territory, and the limited-edition collector tier.