When Omega created the Seamaster Aqua Terra it was influenced by some design elements which had characterized some great Omega wristwatches in the past. One of these was the 1960 Automatic Seamaster. The Aqua Terra is a fitting homage to its timeless design but what’s inside its case would make its ancestor proud.Reference 231.15.39.21.51.001 has a diamond-set bezel fixed to its stainless steel case. It is fitted with a stainless steel bracelet.Seamaster ref: 231.15.39.21.51.001