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- 55%
G-Shock GMCB2100AD-2A Full Metal Chronograph
G-Shock GMCB2100AD-2A Full Metal Chronograph
G-Shock GMCB2100AD-2A Full Metal Chronograph
G-Shock GMCB2100AD-2A Full Metal Chronograph
G-Shock GMCB2100AD-2A Full Metal Chronograph
G-Shock GMCB2100AD-2A Full Metal Chronograph
G-Shock GMCB2100AD-2A Full Metal Chronograph
G-Shock GMCB2100AD-2A Full Metal Chronograph
G-Shock GMCB2100AD-2A Full Metal Chronograph
G-Shock GMCB2100AD-2A Full Metal Chronograph

G-Shock GMCB2100AD-2A Full Metal Chronograph

G-Shock GMCB2100AD-2A Full Metal Chronograph

$345.73

(1,259 reviews)

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.

(1,259 reviews)

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.

$345.73 - $2,062.00

in 26 offers

The lowest price for G-Shock GMCB2100AD-2A Full Metal Chronograph right now is $345.73 at Eco Ring Hong Kong, compared across 16 retailers.

The all-time low was $338.26 on 10 Mar 2026 — today's price is 2% above the lowest ever. This is at or near its all-time low — a good time to buy.

Prices last updated 28 July 2026.

Price comparison

Price data powered by pricesAPI.io

Last updated at 28/07/2026 23:36:06

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
Eco Ring Hong Kong

$345.73

Casio G-Shock Silver Stainless Steel Quartz Watch GMC-B2100 銀色不銹鋼石英錶GMC-B2100 - 257011691

Free delivery

Chrono24.com.au

$563.00

Casio GMC-B2100AD-2AJF

Free delivery

Chrono24.com.au

$590.00

Casio G-Shock GMC-B2100AD-2AJF Steel 43mm

Free delivery

Chrono24.com.au

$691.00

Casio G-Shock GMC-B2100AD-2AJF Steel 51.3x46.3mm

Free delivery

banzaihobby.com

$608.43

CASIO G-SHOCK GMC-B2100

Delivery $38.51

eBay.com.au

$709.99

Casio G-shock Gmc-b2100 Full Metal 51mm From Japan

Delivery $31.56

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!

eBay.com.au

$791.03

Casio G-shock Full Metal Gmc-b2100ad-2a Solar Watch

Delivery $4.71

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!

eBay.com.au

$804.47

Casio G-shock Gmc-b2100ad/2100d Full Metal Solar Bluetooth In Box

Delivery $157.78

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!

eBay.com.au

$924.57

Casio G-shock Gmc-b2100-2ajf Wrist Size 16.5cm Used Watch 7117

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!

eBay.com.au

$931.50

Casio Gmc-b2100-2ajf 45 Mm Used Watch Solar Full Metal Box Included

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!

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

Approximate Case Size (L x W x H)51.3 x 46.3 x 12.4 mm
Approximate Case Diameter46.30 mm
Approximate Case Thickness12.40 mm

Price comparison

Updated about 18 hours ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
Eco Ring Hong Kong

$345.73

Casio G-Shock Silver Stainless Steel Quartz Watch GMC-B2100 銀色不銹鋼石英錶GMC-B2100 - 257011691

Free delivery

Chrono24.com.au

$563.00

Casio GMC-B2100AD-2AJF

Free delivery

Chrono24.com.au

$590.00

Casio G-Shock GMC-B2100AD-2AJF Steel 43mm

Free delivery

Chrono24.com.au

$691.00

Casio G-Shock GMC-B2100AD-2AJF Steel 51.3x46.3mm

Free delivery

banzaihobby.com

$608.43

CASIO G-SHOCK GMC-B2100

Delivery $38.51

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

Approximate Case Size (L x W x H)51.3 x 46.3 x 12.4 mm
Approximate Case Diameter46.30 mm
Approximate Case Thickness12.40 mm

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