Omega Planet Ocean Black Dial Steel 45.5mm Automatic — USD 5,395

The reference 232.30.46.51.01.001 represents Omega's chronograph variant within the Planet Ocean collection, part of the broader Seamaster series. This particular reference incorporates timing functionality into the diving-focused Planet Ocean platform, distinguishing it from time-only variants in the collection. The 46mm stainless steel case houses an automatic movement and features a black dial protected by sapphire crystal. Water resistance extends to 600 meters, maintaining the collection's diving capabilities despite the added chronograph complication. A rotating unidirectional bezel provides timing reference functionality typical of dive-oriented timepieces. This reference targets collectors seeking a substantial sports chronograph with diving credentials. The 46mm case size positions it toward the larger end of contemporary sports watches, appealing to those preferring significant wrist presence. The combination of chronograph functionality and substantial water resistance addresses collectors wanting both timing capabilities and aquatic utility in a single timepiece.