
Pun's early leak of the Omega Speedmaster Moonwatch with the new 3861 Master Co-Axial movement offered the WatchProSite community a crucial first look at a significant update to an iconic timepiece. His detailed breakdown of the aesthetic and technical changes, including the return of classic design elements and the introduction of a new caliber, set the stage for an informed discussion among collectors. This article synthesizes the community's initial reactions and expert insights, providing valuable context for understanding the 2020 Speedmaster evolution.




The Omega Speedmaster Moonwatch Professional, reference 3861, represents a significant evolution within the Speedmaster collection. This reference updates the core Moonwatch design while incorporating modern technical advancements, maintaining its established aesthetic. It is positioned as a contemporary iteration of a well-known chronograph, appealing to collectors who appreciate both heritage design and updated mechanical performance. The model is offered in various material configurations, providing options for different collector preferences.
This Speedmaster Moonwatch Professional features a 42 mm case, with a thickness of 13.18 mm. The case houses the Omega Co-Axial Master Chronometer Calibre 3861, a manual-winding movement. The crystal protecting the dial is available in hesalite or sapphire, depending on the specific sub-reference. The movement provides a power reserve of 50 hours, ensuring reliable operation over an extended period.
The reference 3861 appeals to collectors seeking a Speedmaster with enhanced precision and anti-magnetic properties, certified as a Master Chronometer. Its availability in materials such as stainless steel and Moonshine™ gold allows for diverse collecting strategies. The consistent case dimensions and movement across these variants underscore a unified design approach, while material choices offer distinct visual and tactile experiences.
This is a complete anachronistic fabrication. The last moon mission was in 1972. Daniels did not invent the coaxial movement until 1976. There wasn’t even any overlap. But hey, if someone likes the watch.. then they should go for it. Does this mean that Omega has had the coaxial movement flight qualified?
Why would they, the 1861 works just fine.
NASA won't conduct any tests on this watch.
...even though the hesalite speedie on my wrist is currently running within METAS standards and is proven to be anti-magnetic and [EVEN MORE] shock resistant than the co-axial counterparts. On another note: do these 3861 movements have hacking seconds functionality??
Since decades it has been all about marketing.
This thread is active on the Omega forum with 32 replies. Share your knowledge with fellow collectors.
Join the Discussion →