zOwie Omega Discussion Forum

: I recently sold one of my Omegas: a DeVille
: with Cal.1108. The watch was acquired as new
: old stock. According to Omega vintage
: information, the last production date was
: around 1997. So, basically this watch has
: been on the shelf for at least 9 years. No
: wearing, but definitely receiving no
: service.

: I had to time the watch before sold it to the
: buyer. 1.5 seconds fast/24 hours. The
: cal.1108 is more similar to ETA 2892-A2 than
: cal.1109 or 1120. Cal.1120 in your watch has
: been modified a lot.

I don't remember caliber 1108, but that is great accuracy. I found this article here on chronocentric about caliber 1109. I'm not sure if caliber 1108 had any of the same issues:

"Earlier versions of the Seamaster Pro used the OMEGA 1109 automatic movement. This movement was also used in a number of other OMEGA models, including the Seamaster 120, Constellation, and De Ville. A small portion of these watches may have trouble with a winding gear that prevents the watch from reaching its stated 44 hour power reserve. Around 1996, OMEGA revised the movement slightly to fix this potential winding problem and to add rhodium finishing on some parts for extra durability. The revised version is called the OMEGA 1120.

There is no cause for alarm simply because your watch has the 1109 movement. Most of them are perfectly fine. If you are experiencing winding problems on a 1109-based OMEGA watch, an OMEGA service center may be able to resolve the issue."