SEIKO PROSPEX – Pro Marine Master 300m SLA021J1

First produced in 1968, the stunning Seiko Marine Master has been re-imagined for today. Modelled on the original Marine Master MM300, the modern Seiko Prospex Pro Marine Master is certain to impress.

Water resistant to 300 m/1000 ft the Marine Master is built for saturation diving. Made for professional divers, it is deliberately uncomplicated. This allows the quality of the movement and the ergonomic case and bracelet to shine through.  With a one piece structure, the heavy-duty brushed stainless steel case is 44.3mm in diameter. The black dial has high-visibility hour markers and hands coated in Lumibrite. A legible minute track is also at the extreme edge. Surrounding the dial, there is a black ceramic uni-directional turning bezel.

Equipped with an automatic 8L35 calibre movement, the Seiko Prospex Pro Marine Master is accurate to +15 to -10 seconds per day with a power reserve of approximately 50 hours. For complete peace of mind, it is covered by a two year manufacturer’s warranty.

• Automatic movement calibre 8L35 with manual winding capacity
• 26 jewels
• Accurate to +15 to -10 seconds per day
• Duration: approx. 50 hours
• Stainless steel case, one piece structure, ceramic unidirectional turning bezel
• Case dimensions: 44.3mm diameter, 15.4mm deep
• Date display
• Stop second hand function
• Black dial – indexes and hands with Lumibrite
• Stainless steel bracelet, three-fold clasp with secure lock, push button release, solid & slide adjuster
• Sapphire crystal – anti-reflective coating on inner surface
• Screw-down crown
• Water resistant 30 bar (300m)/1000ft – for saturation diving
• Two Year Manufacturer’s Warranty