Squale is a Swiss brand from the late 1950s which supplied many waterproof cases during the 1960s for major watch brands. It became so famous that it put its name on dials of other brands.
It is a very nice recreational diver’s watch from the 1960s: a superb white and black Bakelite bezel, gorgeous patina on the dial and hour markers, and a very pretty Lollipop seconds hand.