G-Shock GA-1100GB-1A, GG-1000GB-1A, GN-1000GB-1A: Black and Gold Master of G Twin Sensor Series
G-Shock HK - Javys on Twitter: "G-SHOCK MASTER OF G - VINTAGE BLACK & GOLD MUDMASTER GG-1000GB-1A GULFMASTER GN-1000GB-1A GRAVITYMASTER GA-1100GB-1A https://t.co/MbmbJEvgKl" / Twitter