SPB383J1
Engineered for exploration, the Seiko Prospex SPB383J1 Automatic GMT Diver’s Men Watch delivers rugged performance with refined aesthetics. Housed in a 42mm stainless steel case with ceramic bezel insert, it features a sapphire crystal, LumiBrite-treated hands and markers, and a unidirectional rotating bezel. The 6R54 automatic movement offers a dual-time GMT display, stop second function, and a robust 72-hour power reserve. Water resistant to 200m, this diver’s essential also includes a screw-down crown and secure clasp with extender for a professional fit.
Movement
Calibre: 6R54
Movement Type: Automatic with manual winding
Power Reserve: Approx. 72 hours
Jewels: 24
Functions
GMT function (dual time zone)
Stop seconds hand function
Dial & Hands
Dial Colour: Black
LumiBrite: On hands, indexes, and bezel
Case
Case Material: Stainless steel with super-hard coating
Case Diameter: 42.0mm
Case Thickness: 12.9mm
Lug-to-Lug: 48.6mm
Crystal Type: Sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
Bezel: Unidirectional rotating bezel
Crown: Screw-down crown
Case Back: Screw case back
Strap/Bracelet
Band Material: Stainless steel
Clasp: Three-fold clasp with secure lock
Durability
Water Resistance: 20 BAR (200 metres)
