Compare Seiko Prospex 42mm Samurai Automatic Diver with Black Dial #SRPL15 Movement: Seiko 23-Jewel 4R35 Automatic (self-winding and hand wind) Case: Stainless steel, 41.7x12.3mm thick. 49.5mm lug to lug. Crystal: Flat Hardlex Band: Silicone Band. 20mm Island Watch Price: $518.00 Was: $518.00 Sale Price $460.00