Likewise, The SafeDive method entails an outer situation (on which the outer bezel is mounted) which enables the ingress and egress of water, and an internal circumstance, which can be chargeable for preserving the movement. The protrusion at 9:00 properties the coupling gear system linking the inner and outer bezels. https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/