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.

Watches of Switzerland SoHo ad
Prowatches
Posted by:Prowatches

Watches of Switzerland SoHo ad