I just read the announcement of this watch which is an update to the EZM 13 from 2014. The features in a nutshell: • case size 41mm, thickness 15mm • WR 500m • magnetic field protection up to 80,000 A/m • functional reliability from ‑45°C up to +80°C, • A...
Having said that my GMTis the METAS movement. When I had the chrono serviced they told me they swapped out a number of parts to make it anti magnetic🤔 I have always wondered which parts and how different the 9300 and 9900 are…ANYBODY???