The Seiko Prospex Turtle SRPK43K1 is one of Seiko's many iconic diving watches that have garnered enough enthusiasm to be warranted a nickname. The Turtle nickname is easily explained when you squint a little bit. You can see the resemblance but also that it is actually a very comfortable, logical shape for a watch. The SRPK43K1 has a substantial wrist presence with its 45mm diameter, while also having a very reasonable 47.7mm lug to lug distance. This ensures it will also fit a smaller wrist than you'd expect, especially with the clever crown placement at 4 o'clock.

Under the hood is the Seiko Cal. 4R36, which features both a day and a date indicator at 3 o'clock. 

Of course the watch is also very capable of dealing with the ocean, due to the 200m water resistance, LumiBrite lume, sapphire glass, ceramic bezel insert and the very legible design. 

Within the realm of diving watches the Turtle offers a unique proposition, while also taking the practical aspects into account. A definite race winner, despite the nickname!