The EZM3 has an inner soft iron case as well, giving anti-magnetic shielding for up to 80,000a/h and is water resistant to 500m, and has a 'normal' diving bezel. The EZM1 doesn't, is WR to 300m and has a countdown timer bezel (and non-screw down chrono pushers which require a little care not to push if diving if you don't want to flood your watch). I love the EZM1, but it's a bit thick at 16.5mm. Having said that, if I saw one for sale, I'd consider buying it!
A forum community dedicated to watch owners and enthusiasts. Come join the discussion about watch collections, displays, watch winders, accessories, classifieds, and more! We welcome all manufacturers including Casio G-Shock, OMEGA, Rolex, Breitling, Rolex and Tudor, Seiko, Grand Seiko and others.