This is a Sicura 400m Vacuum Divers Watch.  It was made around 1975 and still looks like it could be made from 2020.  

It is in great condition and has a crisp black outer part to the dial with white markings that have no blemishes on at all.   At the centre of the dial is dark grey that softens the dial nicely.  

The date window is at 3 O'clock.  The outer bezel rotates in both directions and the numbers are raised from the bezel so you can read them like Braille if required in the dark.   The overall look of the watch is stunning.  Its the perfect colour combination and is set off with a new black leather strap.