PROSPEX MARINEMASTER SERIES: Introducing the Prospex Master Series: Marinemaster Professional Dive Watches. Serious watches for serious sports. From the first diverÕs watch released in 1965, Seiko has been exceeding expectations
SEIKO PROSPEX COLLECTION: Seiko pioneered several features in diver’s watches that are now widely accepted as setting the global standard, including the “accordion” or corrugated style strap, the wide arrow