The Seiko Tortoise SRPG15K1 watch joins the Prospex Land collection. This new model celebrates the 45th anniversary of the famous Prospex Turtle. This new version features a two-tone blue and black bezel, blue dial and blue nylon strap. It is available with a 42.4mm by 11.7mm thick case. Waterproof to 200 metres, it is equipped with a 4R35 calibre. The classic graduations needed to explore the depths are replaced on this Tortoise with graduations in which the four cardinal points mention N (North), E (East), S (South) and W (West).