Casio Watch G-Shock Gm-s2100b-8aer - Casio
The Casio GM-2100-1A G-Shock Metal Covered wristwatch combines a stainless steel case with a durable black plastic strap, offering a resilient men's watch. It features an analog-digital display with a gray dial, luminous hands and indices for better visibility in low light conditions, as well as a mineral glass for scratch resistance. Key functions include world time, a 1/100-second stopwatch, countdown timer, fully automatic calendar with day and date display, hourly time signal, and dual LED lighting. With a water resistance of 200 meters, it is suitable for swimming and snorkeling. The case measures approximately 44 mm in diameter and 12 mm in thickness, with a band width of 16 mm, and features a screw-down case back and a pin buckle for secure comfort. This model emphasizes reliability and practicality under demanding conditions.
The Casio GM-2100-1A G-Shock Metal Covered wristwatch combines a stainless steel case with a durable black plastic strap, offering a resilient men's watch. It features an analog-digital display with a gray dial, luminous hands and indices for better visibility in low light conditions, as well as a mineral glass for scratch resistance. Key functions include world time, a 1/100-second stopwatch, countdown timer, fully automatic calendar with day and date display, hourly time signal, and dual LED lighting. With a water resistance of 200 meters, it is suitable for swimming and snorkeling. The case measures approximately 44 mm in diameter and 12 mm in thickness, with a band width of 16 mm, and features a screw-down case back and a pin buckle for secure comfort. This model emphasizes reliability and practicality under demanding conditions.
The Casio GM-2100-1A G-Shock Metal Covered wristwatch combines a stainless steel case with a durable black plastic strap, offering a resilient men's watch. It features an analog-digital display with a gray dial, luminous hands and indices for better visibility in low light conditions, as well as a mineral glass for scratch resistance. Key functions include world time, a 1/100-second stopwatch, countdown timer, fully automatic calendar with day and date display, hourly time signal, and dual LED lighting. With a water resistance of 200 meters, it is suitable for swimming and snorkeling. The case measures approximately 44 mm in diameter and 12 mm in thickness, with a band width of 16 mm, and features a screw-down case back and a pin buckle for secure comfort. This model emphasizes reliability and practicality under demanding conditions.
The Casio GM-2100-1A G-Shock Metal Covered wristwatch combines a stainless steel case with a durable black plastic strap, offering a resilient men's watch. It features an analog-digital display with a gray dial, luminous hands and indices for better visibility in low light conditions, as well as a mineral glass for scratch resistance. Key functions include world time, a 1/100-second stopwatch, countdown timer, fully automatic calendar with day and date display, hourly time signal, and dual LED lighting. With a water resistance of 200 meters, it is suitable for swimming and snorkeling. The case measures approximately 44 mm in diameter and 12 mm in thickness, with a band width of 16 mm, and features a screw-down case back and a pin buckle for secure comfort. This model emphasizes reliability and practicality under demanding conditions.
in 20 offers
The lowest price for Casio Watch G-Shock Gm-s2100b-8aer - Casio right now is $139.00 at Chrono24.com.au, compared across 14 retailers.
The all-time low was $139.00 on 8 May 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 8 Sept 2026.
Last updated at 08/09/2026 11:05:40
Casio GM-S2100B-8AER
Free delivery
Casio Gm-s2100b-8ajf Case Size 5.5 ×4.5cm Wrist Size 23cm Used Watch
Free delivery
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Casio Gm-s2100b-8ajf G-shock Zee Shock
Delivery $30.94
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Casio Gm-s2100b-8ajf G-shock
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Casio Gm-s2100b-8ajf Wristwatch Works Men 6514
Free delivery
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Casio Mid-size Model Metal Cover Gm-s2100b-8ajf Ladies Gray
Free delivery
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Casio G-shock Mid-sized Metal-clad Men's Watch Gm-s2100b-8a
Free delivery
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Casio G-shock Mid-sized Metal-clad Men's Watch Gm-s2100b-8a
Free delivery
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Casio G-Shock GM-S2100B-8AER
Delivery between 11–15 Sept $50
Casio G-shock Watch Black GM-S2100B-8AER-OS
Delivery $19.99
| Diameter | 41 mm |
| Water Resistance | 20 Bar (Dive) |
| Time | hours - Analogue hand |
| Calendar | Date - Digital |
| Alarms and notifications | Sound Alarm(s) - 5 daily alarms |
Casio GM-S2100B-8AER
Free delivery
Casio Gm-s2100b-8ajf Case Size 5.5 ×4.5cm Wrist Size 23cm Used Watch
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Casio Gm-s2100b-8ajf G-shock Zee Shock
Delivery $30.94
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Casio Gm-s2100b-8ajf G-shock
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Casio Gm-s2100b-8ajf Wristwatch Works Men 6514
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
| Diameter | 41 mm |
| Water Resistance | 20 Bar (Dive) |
| Time | hours - Analogue hand |
| Calendar | Date - Digital |
| Alarms and notifications | Sound Alarm(s) - 5 daily alarms |
