Seiko Prospex x Automatic ft. Marinemaster aka 1968 Modern Re-interpretation Men Diver Round 200m Water Resistant Watch SPB079J1 SPB079 SPB-079 SPB-079J1 Experience the allure of Seiko MM series, a modern take on the iconic MM300 design that balances style and comfort. Launched with the SLA025, it offers an accessible price without compromising quality. With its sleek case, broad lugs, and bold bevels, this series is a standout in the Seiko lineup, beloved by enthusiasts for its perfect blend of aesthetics and wearability. Caliber Number / Movement 6R15 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 50 hours (+25 to -15 seconds per day) Crystal Sapphire crystal (anti-reflective coating) Luminous LumiBrite on hands, indexes and bezel Case / Band Material Stainless steel (super hard coating) case with silicone band Water Resistance 200m / 660ft diver Case Size Thickness: 12.7 mm Diameter: 44.0 mm Length: 51.0 mm Lug width: 20.0 mm Other Specifications Seiko Prospex x Automatic ft. Marinemaster aka 1968 Modern Re-interpretation Made in Japan Unidirectional rotating bezel Screw-down crown Screw case back 23 jewels Date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)