A Week On The Wrist: The Omega Speedmaster Professional Moonwatch 'Master Chronometer' With Co-Axial Caliber 3861 - Hodinkee
![Omega Speedmaster Moonwatch Professional Chronograph 42mm 3861 Sapphire 310.30.42.50.01.002 — Watch Exchange Co. Omega Speedmaster Moonwatch Professional Chronograph 42mm 3861 Sapphire 310.30.42.50.01.002 — Watch Exchange Co.](http://static1.squarespace.com/static/5a6a048bf43b553453f5f73f/5a6a33c7c83025db44b88323/60c8060194c20b5539d906c1/1623721480522/Omega+3861+Sapphire+NEW.jpg?format=1500w)
Omega Speedmaster Moonwatch Professional Chronograph 42mm 3861 Sapphire 310.30.42.50.01.002 — Watch Exchange Co.
![Omega Speedmaster Moonwatch Sapphire NEW 2023 - Cal 3861... for $6,745 for sale from a Trusted Seller on Chrono24 Omega Speedmaster Moonwatch Sapphire NEW 2023 - Cal 3861... for $6,745 for sale from a Trusted Seller on Chrono24](https://cdn2.chrono24.com/images/uhren/22551085-uuqv9t3oyeqd2pzq5frraaxx-ExtraLarge.jpg)
Omega Speedmaster Moonwatch Sapphire NEW 2023 - Cal 3861... for $6,745 for sale from a Trusted Seller on Chrono24
![Omega Speedmaster Moonwatch 3861 Hesalite 310.30.42.50.01.001 for $5,995 for sale from a Trusted Seller on Chrono24 Omega Speedmaster Moonwatch 3861 Hesalite 310.30.42.50.01.001 for $5,995 for sale from a Trusted Seller on Chrono24](https://cdn2.chrono24.com/images/uhren/18645365-9v8hu7tgz0y07zccv3ruhbq5-ExtraLarge.jpg)