The Sub-39 model was introduced to commemorate sixty years of the Squale brand. Launched in 2019, the limited edition anniversary model was produced in a run of only 150 pieces. Now, the Sub-39 collection offers a diverse selection of watches, all inspired by the brand's history.
The case back design features a specific type of crystal, known as box-shaped, with a flat base and slight convex curvature. This style, traditionally constructed with plexiglass to ensure water resistance, has been faithfully recreated but with an improvement - it is made of sapphire, which is much stronger than plexiglass.