Archer
··Omega Qualified WatchmakerDon't shower with it on and don't swim any deeper than like 5 metres with it on (no diving and also assuming it's had its seals recently checked over within say 12 months)
Also, don't ever operate the chronograph underwater.
The modern Speedmaster is rated for 50 m, so it can go deeper than 5 m without issue as long as the seals are good.











