SEIKO Prospex U.S. Special Edition SRPH55 Longines see-through caseback

see-through caseback

as well as a screwdown crown and caseback

Sporty and tailored

968Production serial number engraved on casebackAutomatic with manual winding capability21

SEIKO Prospex U.S. Special Edition SRPH55 Longines see-through casebackCelebrates 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