Seiko Prospex SRPD31

Despite some categorization confusion, the SRPD31 features a Japanese automatic, self-winding caliber movement, not a quartz battery. This robust mechanical movement powers the watch by harnessing the kinetic motion of the wearer's wrist. It is a staple of the popular Seiko Prospex dive watch lineup.

The Seiko Prospex SRPD31 boasts an impressive 200-meter water resistance rating, making it a highly capable dive watch. This means it can easily withstand scuba diving depths without taking on water. Its secure screw-down crown and robust case design contribute to this impressive deep-sea protection.

The SRPD31 utilizes Seiko's famous cushion-shaped Turtle case, which gives it a distinct, retro 1970s aesthetic. This wider, ergonomically curved profile sits very comfortably on larger wrists. The case design perfectly complements the self-winding caliber housed within.

Yes, to maintain its 200-meter water resistance, the Seiko Prospex SRPD31 is equipped with a sturdy screw-down crown. This critical feature ensures water cannot seep into the Japanese automatic movement during deep dives. It locks securely into the cushion-shaped Turtle case before entering the water.