Omega Caliber 1863 Complete Guide
The Omega caliber 1863 is a hand-wound movement that beats at a frequency of 21600 and has a power reserve of 48 hours. As its base, it uses the Omega caliber 1861.
The caliber has a chronograph and displays Hours, Minutes, Small Seconds. The caliber has 18 jewels and a power reserve of 48 hours.
The 1863 is still quite similar to the predecessor but the 1863 has been slightly modified as it has a rhodium finish and had 1 added jewel.
The 1863 can be seen as Omega’s premium version of the 1861. Because in terms of construction, they are identical, but it has received a higher finish and decoration, including things such as a rhodanised finish and higher quality components.
Omega used the caliber 1863 for the sapphire crystal version of the Speedmaster reference 3188.8.131.52.13.001 amongst others. Omega also uses the caliber 1863 for the Speedmaster Sapphire Sandwich reference 3184.108.40.206.01.006.
This meant that it was fitted in a watch with a see-through casebook, which is part of the reason it was important that the movement is well-decorated.