Omega Speedmaster Moonwatch Caliber 1861 vs 1863 | Bob's Watches

In this video, we will discuss the differences and similarities between the Calibers 1861 and 1863. Click here to shop the Speedmaster collection: https://www.bobswatches.com/omega/speedmaster-1.html Both the caliber 1861 and 1863 power the iconic Speedmaster “Moon Watch.” While they are essentially the same regarding their overall design, there are many differences and similarities between them. Click here now to learn more about the Caliber 1861 vs. 1863: https://www.bobswatches.com/rolex-blog/watch-101/omega-speedmaster-moonwatch-1861-vs-1863.html The Speedmaster holds one of the most coveted titles in horology, the first watch worn on the Moon. It hit the market in 1957 with the caliber 321 tucked inside of the case. Click here to shop the Speedmaster collection: https://www.bobswatches.com/omega/speedmaster-1.html In 1969, reference 145.022 was introduced, featuring a Lemania-based Caliber 861 movement with a cam-controlled chronograph. It remained in production until 1996, when the caliber 1861 replaced it. Omega describes the caliber 1861 as a descendent of the 861 hand-wound movement worn on the Moon, so it’s easy to understand the hype. Both movements are similar in design, with the main difference being that cal. 1861 includes rhodium-plated parts while cal. 861 features both copper-plated and un-plated parts. Its counterpart, caliber 1863, was released around the same time as the 1861 movement, featuring a nicer finish with Geneva stripes on the bridges