Review
Dr No, a respected member of the WatchProSite community, initiated a fascinating experiment to assess the real-world accuracy of Omega's Caliber 3861 movement. This third-generation Professional movement, found in the Apollo 11 50th Anniversary Moonshine and steel/gold models, represents a significant update for Omega. Dr No's call for a community-wide, ten-day 'on-the-wrist' timing test aimed to gather empirical data from multiple owners, providing valuable insights into the performance of this important co-axial escapement.
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.
I just need to contemplate having it on my wrist for 10 days.
as for a 10 day on the wrist timing test, that is asking ALOT of me since I change watches daily and sometimes twice a day I could try and do a weekend or 3 days BUT 10 days is torture
but I was allowed to see, feel and handle it by one of our forum-menbers. What a magnificent piece! All the lucky owners out there, congrats!!!
What is the requirement on winding the watch? Daily? Check against iPhone Clock? I don't have any official timing tool. I also suggest <10 days since I don't have it at home, need to make trips to bank.
. . . this is a community known for sharing and caring. There's at least half a dozen Moonshines (and thanks, Bruce, for mentioning the steel Apollo 11) here that would form the basis of a reasonable sample population. Omega must've experienced extensive internal discussion, not to mention expense, to decide in favor of updating the Professional movement. Ten years ago, Stephen Urquhart mentioned in an interview that eventually all Omegas would transition to a co-axial escapement movement except
You need to define some standard conditions, plus some variables or acceptable windows I came from an Engineering background so it’ll be easier if you set the process and procedures for us to follow.
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