The 200m ones are the ones with screw down crowns. http://forums.watchuseek.com/f21/seiko-5-sports-screw-down-crowns-507487.html
@hippy started
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The 200m ones are the ones with screw down crowns.
http://forums.watchuseek.com/f21/seiko-5-sports-screw-down-crowns-507487.html