The G-SHOCK GA2100-1A keeps the 2100 series' signature toughness in a slim, comfortable profile. Its octagonal bezel frames a black analog-digital dial, with gray hands and indices standing out against a negative digital display. At just 11.8 mm thick and 51 grams, the contoured case slips easily into your everyday rotation, sleeves or no sleeves. Shock resistance, a Carbon Core Guard structure, and 200-meter water resistance back up the clean, understated look.

• Black analog-digital dial
• Gray hands and indices
• Negative digital display
• Octagonal bezel
• Shock-resistant construction
• Carbon Core Guard structure
• 200-meter water resistance
• Mineral glass
• Case: 48.5 × 45.4 × 11.8 mm
• Weight: 51 g
• Fits wrists: 145–215 mm