StrapXPro revolutionized rubber watch strap for your everyday joyful; the systematically engineered rubber strap that offers ultimate comfort irritation-free Seiko SKX SERIES: SKX007, SKX009 & SKX011 Seiko NEW 5 SPORT (5KX/GMT) SERIES Seiko SAMURAI SERIES Seiko NEW MONSTER Longines HYDROCONQUEST. StrapXPro revolutionized rubber watch strap for your everyday joyful; the systematically engineered rubber strap that offers ultimate comfort irritation-free Seiko SKX SERIES: SKX007, SKX009 & SKX011 Seiko NEW 5 SPORT (5KX/GMT) SERIES Seiko SAMURAI SERIES Seiko NEW MONSTER Longines HYDROCONQUEST.