TUDOR Black Bay Fifty-Eight 925 39mm M79010SG-0002 TUDOR launches a new and exclusive version of its popular Black Bay Fifty-Eight model in 925 silver and with an open caseback Satin (matte) finish, 39 mm in diameter, made of 925 silver with an open and incandescent caseback Domed dial in frosted taupe and hour markers Caliber manufacture MT5400, certified by the Swiss Official Chronograph Testing Institute (COSC), with silicon balance spring and 70-hour power reserve “Snowflake” hands, a hallmark of TUDOR diving watches introduced in 1969, with phosphorescent Swiss Super-LumiNova® Grade A coating The silver case of the Black Bay Fifty-Eight 925 is further enhanced by the taupe dial and matching bezel insert. Numerous silver details add the finishing touches to the delicate aesthetic of this model.