In 1965, Seiko launched its first diver’s watch. Since then, Seiko has been recreating the technology of diver’s watches one after another. Today, Prospex is often related to a professionally designed recreational diver watch. In my opinion, Seiko Prospex Diver SLA017J1 has been one of the most exciting releases in recent years from Seiko.
In order to properly introduce the Seiko Prospex Diver SLA017J1, it would be best to give a quick overview of the Seiko 62MAS, which was made 52 years ago. The 62MAS uses an automatic calibre 6217A movement. It has a 37 mm case and rated with a water resistance of 150 meters. The bezel features a 60-minute insert with all the required markings but was bidirectional. Today, the Seiko 62MAS is a collector’s timepiece which can be rarely found in the market.
Seiko re-engineered the SLA017J1 with such subtlety that you can hardly differentiate the differences. SLA017J1 has a black dial and is fitted a black silicone strap which almost exactly like the 62MAS. Seiko has kept the same shape and design for the case, bezel, crown, bezel insert, scale, font, markers, dial, hands, inscriptions, date window, and case-back. Even the strap looks like the original vintage version with the diamond pattern.
The whole project was entrusted to Mr. Nobuhiro Kosugi, a recipient of the prestigious Medal with Yellow Ribbon and Contemporary Master Craftsman Award.