Seiko Prospex SPB439 MM200 GMT Save the Ocean Limited Edition Citizen Eco-Drive PRT AW7020-00A Against an allergic reaction to

Against an allergic reaction to nickel

Each watch is water-rated to 100 meters and features advanced GPS and GLONASS satellite reception to track in more challenging environments than GPS alone

the 9R15 for Spring Drive rating at +/- 10 seconds a month

Multiband 6

Seiko Prospex SPB439 MM200 GMT Save the Ocean Limited Edition Citizen Eco-Drive PRT AW7020-00A Against an allergic reaction toThe mission of Seiko Prospex is to protect the world's oceans now and for future generations, and to secure this legacy for divers everywhere. To this end, Seiko Prospex supports various marine conservation activities through its "Save the Ocean" initiative. Today, Seiko Prospex introduces a new limited edition diver's watch GMT into the Save the Ocean series, which represents these conservation activities. The new creation's textured dial captures