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G-Shock Solar Stainless Steel Connected Series Mens Watch GSTB100D-1A
G-Shock Solar Stainless Steel Connected Series Mens Watch GSTB100D-1A
G-Shock Solar Stainless Steel Connected Series Mens Watch GSTB100D-1A
G-Shock Solar Stainless Steel Connected Series Mens Watch GSTB100D-1A
G-Shock Solar Stainless Steel Connected Series Mens Watch GSTB100D-1A
G-Shock Solar Stainless Steel Connected Series Mens Watch GSTB100D-1A
G-Shock Solar Stainless Steel Connected Series Mens Watch GSTB100D-1A
G-Shock Solar Stainless Steel Connected Series Mens Watch GSTB100D-1A

G-Shock Solar Stainless Steel Connected Series Mens Watch GSTB100D-1A

G-Shock Solar Stainless Steel Connected Series Mens Watch GSTB100D-1A

$380.00

(1,653 reviews)

This is a model from the G-Shock Mudmaster Series, designed for use in extreme environments scattered with rubble, dirt and debris, and uses carbon materials. The use of high rigidity carbon on the case keeps damage and deformation at bay, and ensures a high level of airtightness and shock resistance. This model also features a filter that protects against the invasion of mud, a stainless steel panel back, and a back cover made of shock-resistant fine resin embedded with glass fibers, giving it a high level of resistance to dust and mud. The bezel also uses three layers of fine resin with carbon fiber inserts and is designed to resemble a portable gasoline can that could be found on off-road vehicles. Function-wise, this model comes with compass, altimeter/barometer, temperature reader and pedometer. In addition to being able to easily correct the time using the dedicated CASIO WATCHES app, there are lots of other useful features including the Mission Log feature, which automatically records in the app altitude data obtained from the watch and route data obtained by your smartphone. This is a toughness watch that supports you in taking quick decisions and accurate actions.

This is a model from the G-Shock Mudmaster Series, designed for use in extreme environments scattered with rubble, dirt and debris, and uses carbon materials. The use of high rigidity carbon on the case keeps damage and deformation at bay, and ensures a high level of airtightness and shock resistance. This model also features a filter that protects against the invasion of mud, a stainless steel panel back, and a back cover made of shock-resistant fine resin embedded with glass fibers, giving it a high level of resistance to dust and mud. The bezel also uses three layers of fine resin with carbon fiber inserts and is designed to resemble a portable gasoline can that could be found on off-road vehicles. Function-wise, this model comes with compass, altimeter/barometer, temperature reader and pedometer. In addition to being able to easily correct the time using the dedicated CASIO WATCHES app, there are lots of other useful features including the Mission Log feature, which automatically records in the app altitude data obtained from the watch and route data obtained by your smartphone. This is a toughness watch that supports you in taking quick decisions and accurate actions.

(1,653 reviews)

This is a model from the G-Shock Mudmaster Series, designed for use in extreme environments scattered with rubble, dirt and debris, and uses carbon materials. The use of high rigidity carbon on the case keeps damage and deformation at bay, and ensures a high level of airtightness and shock resistance. This model also features a filter that protects against the invasion of mud, a stainless steel panel back, and a back cover made of shock-resistant fine resin embedded with glass fibers, giving it a high level of resistance to dust and mud. The bezel also uses three layers of fine resin with carbon fiber inserts and is designed to resemble a portable gasoline can that could be found on off-road vehicles. Function-wise, this model comes with compass, altimeter/barometer, temperature reader and pedometer. In addition to being able to easily correct the time using the dedicated CASIO WATCHES app, there are lots of other useful features including the Mission Log feature, which automatically records in the app altitude data obtained from the watch and route data obtained by your smartphone. This is a toughness watch that supports you in taking quick decisions and accurate actions.

This is a model from the G-Shock Mudmaster Series, designed for use in extreme environments scattered with rubble, dirt and debris, and uses carbon materials. The use of high rigidity carbon on the case keeps damage and deformation at bay, and ensures a high level of airtightness and shock resistance. This model also features a filter that protects against the invasion of mud, a stainless steel panel back, and a back cover made of shock-resistant fine resin embedded with glass fibers, giving it a high level of resistance to dust and mud. The bezel also uses three layers of fine resin with carbon fiber inserts and is designed to resemble a portable gasoline can that could be found on off-road vehicles. Function-wise, this model comes with compass, altimeter/barometer, temperature reader and pedometer. In addition to being able to easily correct the time using the dedicated CASIO WATCHES app, there are lots of other useful features including the Mission Log feature, which automatically records in the app altitude data obtained from the watch and route data obtained by your smartphone. This is a toughness watch that supports you in taking quick decisions and accurate actions.

$380.00 - $1,003.99

in 34 offers

The lowest price for G-Shock Solar Stainless Steel Connected Series Mens Watch GSTB100D-1A right now is $380.00 at eBay.com.au, compared across 10 retailers.

The all-time low was $120.99 on 10 June 2026 — today's price is 214% above the lowest ever. It has been notably cheaper before — worth setting a price alert.

Prices last updated 22 June 2026.

Price comparison

Price data powered by pricesAPI.io

Last updated at 22/06/2026 20:56:21

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

$599.99

G-Shock Casio Men's G-Shock G-Steel Band Tough Solar Bluetooth Watch, Black Dial and Steel Band

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

$380.00

Casio Gstb100d-1a (5513) G-shock G-steel Tough Solar Black Dial Men's

Delivery $12.95

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

$393.43

Casio G-shock Gst-b100 Men's Watch Shock Resistant Bluetooth From

Delivery $33.81

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

$419.75

Casio G-steel Quartz Watch Analog Blk Slv Gst-b100

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

$420.15

Casio G-shock Gst-b100d With Box Smartphone Link Tough Solar

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

$514.06

Casio G-shock G-steel Gst-b100d-1a9jf Watch Black Silver Resin Steel

Delivery $31.43

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

$516.32

Casio Shock Gst B100d World Solar Smartphone Link Metal Steel 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!

eBay.com.au

$529.09

Casio Shock Steel Gst B100d 1a9jf Bluetooth Compatible Solar Quartz

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

$540.30

Casio G-shock G-steel Gst-b100d-1a9jf Men's Analog Watch From Japan

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

$542.86

Casio G-shock Gst-b100 Solar Digital Watch 20atm Stainless Steel Used

Delivery $17.29

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

Batteries1 Lithium Ion batteries required. (included)
Is Discontinued By ManufacturerNo
Display typeChronograph
Dial colourBlack
Band colourSilver

Price comparison

Updated 8 days ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
Amazon.com.au

$599.99

G-Shock Casio Men's G-Shock G-Steel Band Tough Solar Bluetooth Watch, Black Dial and Steel Band

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

$380.00

Casio Gstb100d-1a (5513) G-shock G-steel Tough Solar Black Dial Men's

Delivery $12.95

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

$393.43

Casio G-shock Gst-b100 Men's Watch Shock Resistant Bluetooth From

Delivery $33.81

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

$419.75

Casio G-steel Quartz Watch Analog Blk Slv Gst-b100

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

$420.15

Casio G-shock Gst-b100d With Box Smartphone Link Tough Solar

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

Batteries1 Lithium Ion batteries required. (included)
Is Discontinued By ManufacturerNo
Display typeChronograph
Dial colourBlack
Band colourSilver

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