The Seiko SUT421 packages one of their most recognizable diver designs in a mid-size case and unique colorway.
The Seiko Prospex SUT421 recalls one of Seiko's most recognizable divers in a mid-size stainless steel case and eye-catching colorway. The case is highlighted by a green rotating bezel with a screwdown caseback and crown. The Caliber V131 is solar-powered with a six-month power reserve when fully charged, guaranteeing accurate timing when it matters. The white dial with LumiBrite hands and markers and green bezel is set off with a mint green silicone strap.