SRPH55 PROSPEX COLLECTION Prospex U.S. Special EditionCelebrates 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...