OMEGA 1345

The Omega caliber 1345 is an in-house quartz movement introduced in 1976. It features 7 jewels and a day/date calendar, along with a jumping hours complication that allows the hour hand to advance independently for easy time zone changes. Seconds hacking is activated by pushing the crown inward rather than pulling it out. The movement was used in vintage Omega watches before the brand shifted to Swatch Group ETA movements.