The 142 st ii gz watch by sinn comes with a very useful feature for everyone who loves the sea and marine sports an integrated tide bezel the calibre is automatic dubois dpraz 2070 that performs 28 800 vibrations per hour and has 33 bearing jewels the watch is resistant to high and low pressure it comes with various useful functionalities including a 60 minute chronograph hand date a 24 hour display transparent case back and scratch resistant sapphire crystal glass with anti reflective