My Eastern Watch Collection: Seiko Prospex 200m Diver SRP637 (or SRP637K or SRP637K1) Shrouded Black Monster (a.k.a. Monster Tuna) - A modern transformation of the original Monster to something bigger and stylish,
New Seiko Prospex Baby Tuna SRP637 Automatic 46.5mm Stainless Steel 200m Diver - The Sutor House