The Seiko Prospex Blue Lagoon Samurai SRPB09 was released in 2017 in a limited edition run of 6000 pieces. It was released at the same time as a similar-looking model, the Seiko Prospex SRPB11 Blue Lagoon Turtle. 

Like many of Seiko’s limited editions, the most notable change on this model is the color scheme. It is certainly eye-catching and unique and begins with the dial. It has a matte-like blue finish that also has a starburst element to it when held up in the right light. If you compare it to the regular Samurai, it is far more stunning and does not have that waffle-like pattern.

This is further complemented by the two tones of blue used on the bezel. The lighter blue is used on the first quarter of the bezel, until 15 minutes. With the standard minute markers for a dive watch. Then it moves into a darker blue for the rest, with smaller markers and Arabic numerals every 10 minutes.

This model is a 2019 Full set with a full service and a new (original Seiko) automatic Caliber!