/fa/ - Fashion

>>17747666
The cal 1120 is the first time Omega went in-house modification. They replaced plenty of parts, even the winding mechanism. The rotor was also produced by them and cut into a different shape than stock.

>The caliber 1120 used in the older Seamaster Professional series is an ETA 2892-A2 with 2 jewels added to the ends of the barrel arbor. Omega also reshaped the automatic winding system's bridge to increase the winding efficiency and decrease rotor wobble over their previous version called the 1109.