Furthermore, The SafeDive procedure involves an outer situation (on which the outer bezel is mounted) which permits the ingress and egress of h2o, and an internal case, which can be chargeable for shielding the movement. The protrusion at 9:00 houses the coupling equipment system linking the internal and outer bezels. https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/