224.32.55.21.04.001Ref

The Ploprof 1200M's case is unmistakable: a screwed-in crown at 9 o'clock under a protective buffer allows freer wrist movement and prevents unintentional operation, while time and date are set by unscrewing and pulling the crown. Its Co-Axial calibre 8500 permits separate hour-hand adjustment for time zones or daylight saving changes, and a bezel-release pusher with an orange anodized aluminium ring at 2 o'clock lets the bezel rotate both ways before locking tightly. An automatic helium escape valve at 4 o'clock assists professional divers operating from diving bells, and this Omega Seamaster Ploprof 1200M, reference 22432552104001, maintains the lineage's robust reliability and water resistance, driven by the 2007-introduced Co-Axial calibre 8500 with free sprung balance, developed by Omega as a key part of its mechanical watchmaking revolution since 1999.