Core Features of the Casio G-Shock One Tone 2100 Series: 

• The watches in this collection are the perfect fusion of sleek design and eco-conscious innovation.
• The watches are easily recognisable due to their octagonal bezel. 
• These G-Shock watches are water-resistant up to 200 metres (20 bar). 

Model Specifications GA-2100-2A2ER:

• This watch follows a neon blue colour scheme. 
• The bezel and case are made with eco-friendly, bio-based resin. 
• For a robust design, every detail on the dial is meticulously shaded and textured. 
• A toughened mineral glass protects the dual display dial. 
• Amongst the many functions featured on the watch are alarms, a countdown timer, a date and weekday display, a stopwatch and world time. 
• Once set, an automatic calendar always displays the correct date. 
• Casio’s Patented Hollow Core Guard Structure protects against impact and vibration. 
• The watch is finished with a blue rubber strap that fastens with a pin buckle. 
• Movement type - Quartz.