Japanese made, manually wound, 28.4 mm/4.9 mm, 24 jewels, 28,800 vph (4Hz), 72-hour power reserve, SPRON510 (proprietary) alloy mainspring, SPRON610 (proprietary) alloy balance spring that is highly shock resistant and anti-magnetic.

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Jason Pitsch
Posted by:Jason Pitsch

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Casio G-Steel Carbon G-Shock