OMEGA 1310

The Omega caliber 1310 is an electronic quartz movement introduced in 1973 as Omega's first in-house quartz caliber. It operates at a frequency of 32,768 Hz with 8 jewels and claims accuracy of approximately 5 seconds per month, featuring a trimmer for regulation. The movement includes hacking seconds and instantaneous date change, with Incabloc shock protection. It uses a 386/SR43W battery with a stated life exceeding one year. The caliber later evolved into the 1315 and was produced until approximately 1978.