OMEGA 231.15.39.21.51.001 Seamaster Aqua Terra 5-Year Warranty Black Dial Automatic Movement Water ResistantProduct Highlights Omega was founded in 1848 when watchmaker Louis Brand opened a watch workshop in La Chaux de Fonds, Switzerland. The Seamaster was born in 1948 at the request of the British military. It is the oldest series among the "four major Omega series." The simple design is versatile for a wide range of occasions. The case back is transparent, allowing you to enjoy the movement of the mechanism. Specifications Band Length Wrist