G Shock | GMAP2100SR74 Citizen the Boulton offers Swiss precision

the Boulton offers Swiss precision while staying true to its American spirit

10 bar (100m) water resistance and the exclusive H-21 automatic caliber timing every move to perfection it's ready for anything

42-hr power reserve

Function-wise

G Shock | GMAP2100SR74 Citizen the Boulton offers Swiss precisionCompact, streamlined, stylish the GMA P2100 sparkles like the summer sun. Treated with polarized vapor deposition, the watch glass delivers a sun drenched summertime vibe with colors that change with a tilt of the wrist. Paired with a translucent case and band, the design evokes the light, refreshing feel of a summer resort. The compact design fits smaller wrists with total comfort. These versatile timepieces take you wherever you want to go from