The Diver Collection is an homage to what is arguably the most iconic category in the history of watches. A technical watch, the Diver Automatic 42mm blends functionality typical of a dive watch with elevated details and design found in all Jack Mason designs. The high gloss dial features Swiss Super-LumiNova markers. The anodized aluminum top ring and ceramic bezel are paired with a stainless steel case. The Diver Automatic 42mm JM-D301-001 is elevated with sapphire crystal while the 42mm case is compatible with any 22mm Jack Mason strap. At 30ATM the screw down crown is etched with a Texas lone star while the caseback is etched with a Diver's helmet a nod to Jack Mason's roots and the historical place of the diver watch in the history of timepieces.