Seiko Prospex Marinemaster 300M - 1968 Heritage JDM Salon Exclusive

Meet the Seiko Prospex Marine Master 300M, a true icon in the world of professional dive watches. This isn't just any diver; it carries the heritage of Seiko's deep-sea exploration tools. Water resistant to 300 meters (enough for finding Nemo, probably), it's built incredibly tough. The standout feature is its one-piece 'Monobloc' stainless steel case. This clever design eliminates the need for a separate case back, enhancing water resistance and making it suitable for saturation diving without needing a helium escape valve – neat trick, Seiko! Powering this legend is the high-grade Seiko Calibre 8L35 automatic movement, known for its robustness and precision, essentially an undecorated Grand Seiko calibre assembled by master watchmakers. The deep black dial provides a perfect stage for the distinctive hands and applied hour markers and the excellent Seiko LumiBrite ensures visibility when the lights go out. The unidirectional rotating bezel features a durable black insert for timing dives. Seiko's renowned finishing is evident, often including sharp lines and potentially Zaratsu polishing on certain surfaces. Fitted with a robust steel bracelet, this Marine Master 300M combines legendary performance with unique aesthetics. Our offering is brand new and comes in full set of boxes and papers. Covered by our limited warranty of 1 year, starting on the date of purchase & manufacturers own warranty started in 10.2024.