G-Shock GGB100XM-1A Master of G Mudmaster Metal Bezel Quad Sensor Carbon Silver Luminox Black Ops Steel A.8401 The logo at the top

The logo at the top center of the dial glows in the dark

its one-of-a-kind face

including all watches sold and shipped by Amazon

The ever-popular octagonal GMAS2100 displays an indicator in the shape of a basil leaf motif on the inset dial at the 9 o'clock position

Perpetual calendar to February 28

G-Shock GGB100XM-1A Master of G Mudmaster Metal Bezel Quad Sensor Carbon Silver Luminox Black Ops Steel A.8401 The logo at the topFor the fearless adventurer, a tough and rugged Master of G MUDMASTER featuring a strong, durable metal bezel. The watches of the G SHOCK Master of G line, developed for professionals working in the harshest environments, come equipped with even tougher functionality. And the MUDMASTER takes this another step further with the ability to handle the roughest rubble and debris strewn terrains, earning the appreciation and trust of rangers and rescue