Seiko Prospex SRPL51K1 – Automatic Diver's 200 m

Seiko Prospex SRPL51K1 – Modern "Slim Samurai" with Blue Diver DNA

The Seiko Prospex SRPL51K1 belongs to the new generation of "Slim Samurai" models. It adopts the distinctive, angular design language of the classic Samurai, but appears slimmer, more modern, and more suitable for everyday wear. The blue dial with color gradient gives it depth and dynamism – a sporty tool watch with a clear Prospex design language.

With 200m water resistance, a screw-down crown, and the reliable 4R35 automatic movement, it is a robust companion for everyday life, leisure, and water activities.

Design & Character

– Blue gradient dial with dynamic color transition
– Clear legibility thanks to LumiBrite on hands and indices
– Sporty Prospex look with unidirectional rotating diving bezel
– Stainless steel case and stainless steel bracelet for a solid tool watch feel

Technical Highlights

– Automatic caliber Seiko 4R35 (manual winding & hacking function)
– Power reserve approx. 41 hours
– Manufacturer precision: +45 / −35 sec./day
– Water resistant Diver’s 200 m / 20 bar
– Unidirectional rotating bezel (diving time measurement)
– Screw-down case back

Dimensions

– Diameter: 41.7 mm
– Height: 12.25 mm
– Lug width: 20 mm
– Weight: approx. 170 g
– Original strap length: approx. 21 cm

Case & Glass

– Stainless steel case
– Hardlex glass (hardened mineral glass)
– Screw-down case back

Dial & Luminous Material

– Dial color: Blue (color gradient)
– LumiBrite on hands and indices

Bracelet & Clasp