When it comes to producing purpose-built dive watches, Seiko is one of the best in the business, and a number of the brand’s modern Prospex divers reimagine classic fan-favorite designs from Seiko’s legendary dive watch history. The latest addition to the lineup is based on the vintage reference 6105-8000 diver from the late 1960s, which is reimagined with modern materials and manufacturing techniques to make it perfectly suited for the modern era.

Featuring a distinct cushion shape that measures 41mm in diameter by 46.9mm lug-to-lug and 12.3mm thick, the stainless steel cases of these latest Prospex dive watches are finished with Seiko’s Super Hard coating for additional scratch resistance. Additionally, Seiko offers three different configurations that include a white dial model with a black bezel and a stainless steel bracelet (SPB313), a black dial model with a matching black bezel and a rubber strap (SPB317), and a version with gilt accents set against a black dial and bezel that is also fitted with a stainless steel bracelet (SPB315).

Despite their differences, all of these Seiko Prospex divers feature unidirectional rotating timing bezels attached to the top of their cases and include ample applications of LumiBrite on their hands and hour markers for a brightly glowing display in dark ocean waters. Additionally, all three Seiko Prospex divers include curved anti-reflective sapphire crystals above their dials, screw-down winding crowns, and solid stainless steel casebacks, which help provide them with an ISO-certified 200 meters of water resistance.

Powering the trio of Seiko Prospex divers is the brand’s in-house Caliber 6R35 automatic movement, which offers users hacking, hand-winding, and a quickset date display that features a calendar disc color-matched to the dial of each watch. Additionally, the Call. 6R35 offers users an extended power reserve of approximately 70 hours, along with the same rock-solid reliability that defines all of Seiko’s workhorse mechanical movements.