SEIKO Prospex U.S. Special Edition SRPH55 Longines as well as a screwdown

as well as a screwdown crown and caseback

968Production serial number engraved on casebackAutomatic with manual winding capability21

is water-resistant up to a pressure of 20 bar (200 m/656 ft) and features a unique strap offering maximum comfort

Luminous hands and hour markers

reducing wear and tear and maintaining the power reserve better during chronograph operation

SEIKO Prospex U.S. Special Edition SRPH55 Longines as well as a screwdownCelebrates Seiko Prospex's ongoing efforts to promote ocean exploration and conservationAutomatic diver with manual winding capability21,600 vibrations per hourPower reserve: approximately 41 hours24 jewelsBlack ceramic unidirectional rotating elapsed timing bezelIntricately patterned brown dial inspired by the turtle shellDay date calendar with day in both English and KanjiLumiBrite hands and markersSapphire crystal with anti reflective coating on