There’s no shortage of service walkthroughs for this and similar ETA quartz calibres on the Internet, and here on WRT. Nevertheless, I thought it would be good fun and educational to create my own walkthrough, and here it is now! Only having experience of servicing mechanical and automatic movements, I truly learnt that a quartz movement is not “just a time telling battery device”, but indeed a mechanical movement, except that the power source isn’t a mainspring but a battery and that the e