Seiko's Prospex collection is dedicated to creating sporty, precise and reliable watches. The Prospex SPB453J1 automatic watch is made entirely of stainless steel with an anti-scratch coating. Water-resistant to 300 meters, it is the perfect representation of Seiko's expertise in diving watches. Its attractive green dial features Lumibrite-coated hands and hour-markers, a domed sapphire crystal with anti-reflective coating and a green unidirectional rotating bezel.