Back in 2010, Bremont introduced the Supermarine 500, which introduced a fresh take on a pretty well-trod path: the dive watch. Its unique crown guard, sapphire bezel, signature Bremont three-piece “Trip-Tick” case, and overall styling set it apart from the pack. It quickly became a favorite of dive watch lovers. Then, in 2014, came the Supermarine 2000, which quadrupled the water resistance, introduced the anti-magnetic and anti-shock properties of Bremont’s MB watches, and beefed up the case from 43mm to 45mm. But for many, 45mm, or even 43mm, is too large for a watch, even a diver. So at last week’s “Basel-upon-Thames” event in London, Bremont released new additions to the Supermarine lineup – the Type 300 and Type 301 – both with an all-new 40-millimeter case.