G-Shock GMB2100AD-5A Watch | StarBuy
The Casio G-Shock GM-B2100AD-5A is a robust analog-digital wristwatch that combines the iconic durability of G-Shock with a refined metal design. This model features a stainless steel case with a gold ion-plated finish and a matching resin strap that offers both resilience and comfort. With a case diameter of approximately 49.3 mm and a thickness of 12.8 mm, it presents a noticeable yet well-wearable appearance on the wrist. The watch integrates Tough Solar technology for reliable power generation from light sources, eliminating the need for frequent battery changes. It includes Multi-Band 6 radio timekeeping, which automatically synchronizes with radio signals from six transmitters worldwide for precise time accuracy. Additional features include world time for 39 time zones, a stopwatch with 1/100-second precision, a countdown timer, five daily alarms, and a full auto calendar. The watch is water-resistant up to 200 meters, suitable for professional marine activities and surface water sports. The mineral glass offers scratch resistance, while the shock-resistant construction protects against impacts and vibrations. The analog hands and indices are coated with luminescent material for improved visibility in low light. This model upholds the core principles of G-Shock—durability and reliability—while presenting a more sophisticated aesthetic for various occasions.
The Casio G-Shock GM-B2100AD-5A is a robust analog-digital wristwatch that combines the iconic durability of G-Shock with a refined metal design. This model features a stainless steel case with a gold ion-plated finish and a matching resin strap that offers both resilience and comfort. With a case diameter of approximately 49.3 mm and a thickness of 12.8 mm, it presents a noticeable yet well-wearable appearance on the wrist. The watch integrates Tough Solar technology for reliable power generation from light sources, eliminating the need for frequent battery changes. It includes Multi-Band 6 radio timekeeping, which automatically synchronizes with radio signals from six transmitters worldwide for precise time accuracy. Additional features include world time for 39 time zones, a stopwatch with 1/100-second precision, a countdown timer, five daily alarms, and a full auto calendar. The watch is water-resistant up to 200 meters, suitable for professional marine activities and surface water sports. The mineral glass offers scratch resistance, while the shock-resistant construction protects against impacts and vibrations. The analog hands and indices are coated with luminescent material for improved visibility in low light. This model upholds the core principles of G-Shock—durability and reliability—while presenting a more sophisticated aesthetic for various occasions.
The Casio G-Shock GM-B2100AD-5A is a robust analog-digital wristwatch that combines the iconic durability of G-Shock with a refined metal design. This model features a stainless steel case with a gold ion-plated finish and a matching resin strap that offers both resilience and comfort. With a case diameter of approximately 49.3 mm and a thickness of 12.8 mm, it presents a noticeable yet well-wearable appearance on the wrist. The watch integrates Tough Solar technology for reliable power generation from light sources, eliminating the need for frequent battery changes. It includes Multi-Band 6 radio timekeeping, which automatically synchronizes with radio signals from six transmitters worldwide for precise time accuracy. Additional features include world time for 39 time zones, a stopwatch with 1/100-second precision, a countdown timer, five daily alarms, and a full auto calendar. The watch is water-resistant up to 200 meters, suitable for professional marine activities and surface water sports. The mineral glass offers scratch resistance, while the shock-resistant construction protects against impacts and vibrations. The analog hands and indices are coated with luminescent material for improved visibility in low light. This model upholds the core principles of G-Shock—durability and reliability—while presenting a more sophisticated aesthetic for various occasions.
The Casio G-Shock GM-B2100AD-5A is a robust analog-digital wristwatch that combines the iconic durability of G-Shock with a refined metal design. This model features a stainless steel case with a gold ion-plated finish and a matching resin strap that offers both resilience and comfort. With a case diameter of approximately 49.3 mm and a thickness of 12.8 mm, it presents a noticeable yet well-wearable appearance on the wrist. The watch integrates Tough Solar technology for reliable power generation from light sources, eliminating the need for frequent battery changes. It includes Multi-Band 6 radio timekeeping, which automatically synchronizes with radio signals from six transmitters worldwide for precise time accuracy. Additional features include world time for 39 time zones, a stopwatch with 1/100-second precision, a countdown timer, five daily alarms, and a full auto calendar. The watch is water-resistant up to 200 meters, suitable for professional marine activities and surface water sports. The mineral glass offers scratch resistance, while the shock-resistant construction protects against impacts and vibrations. The analog hands and indices are coated with luminescent material for improved visibility in low light. This model upholds the core principles of G-Shock—durability and reliability—while presenting a more sophisticated aesthetic for various occasions.
in 41 offers
The lowest price for G-Shock GMB2100AD-5A Watch | StarBuy right now is $506.38 at eBay.com.au, compared across 20 retailers.
The all-time low was $195.00 on 30 Apr 2026 — today's price is 160% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 2 Aug 2026.
Last updated at 02/08/2026 13:19:09
Casio Gm-b2100 Case Size 5 ×4.4cm Wrist Size 17.5cm Used Watch 613817
Free delivery
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Casio Gm-b2100 Case Size 5 ×4.5cm Wrist Size 17cm Used Watch 314010
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 G-shock Copper Dial Sports Tough Solar 200m Men's 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 G-Shock (Japan Made) Full Metal Solar S.Steel Band Watch GM-B2100AD-5A
Free delivery
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Casio G-shock Gm-b2100ad Watch
Delivery $5.07
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 G-shock 2100 Series Pink Dial Stainless Steel Watch Gmb2100ad-5a
Delivery $141.02
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Casio G-shock Gm-b2100ad-5adr Pink Solar Stainless Steel Men's Watch
Free delivery
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Casio G-shock Gm-b2100ad-5adr Pink Solar Stainless Steel Men's Watch
Free delivery
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Casio G-shock Analog-digital Full Metal Salmon Dial Men's Watch
Delivery $39.19
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G-shock Full Metal Stainless Steel Watch Gmb2100ad-5a
Free delivery
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| Approximate Case Size (L x W x H) | 49.8 x 44.4 x 12.8 mm |
| Approximate Case Diameter | 44.40 mm |
| Approximate Case Thickness | 12.80 mm |
Casio Gm-b2100 Case Size 5 ×4.4cm Wrist Size 17.5cm Used Watch 613817
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-b2100 Case Size 5 ×4.5cm Wrist Size 17cm Used Watch 314010
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 G-shock Copper Dial Sports Tough Solar 200m Men's 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 G-Shock (Japan Made) Full Metal Solar S.Steel Band Watch GM-B2100AD-5A
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 G-shock Gm-b2100ad Watch
Delivery $5.07
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!
| Approximate Case Size (L x W x H) | 49.8 x 44.4 x 12.8 mm |
| Approximate Case Diameter | 44.40 mm |
| Approximate Case Thickness | 12.80 mm |
