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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

$332.82

(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.

$332.82 - $1,318.00

in 22 offers

The lowest price for G-Shock Solar Stainless Steel Connected Series Mens Watch GSTB100D-1A right now is $332.82 at eBay.com.au, compared across 14 retailers.

The all-time low was $120.99 on 10 June 2026 — today's price is 175% above the lowest ever. It has been notably cheaper before — worth setting a price alert.

Prices last updated 14 July 2026.

Price comparison

Price data powered by pricesAPI.io

Last updated at 14/07/2026 23:11:49

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

$332.82

Casio G-shock Gst-b100d-1ajf G-steel Solar Bluetooth Men Watch Used

Delivery $31.55

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

$438.08

Casio G-shock G-steel Gst-b100d Solar Quartz 45mm Silver Men’s Watch

Delivery $17.35

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

$462.33

Casio G-shock Gst-b100d Tough Solar Analog Men's Watch Silver

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

$555.31

Casio G-shock Gst-b100 Men's Watch Black Dial Solar From Japan

Delivery $31.34

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

$580.56

Casio G-shock G-steel Gst-b100d Quartz 45mm Resin Band Men's Watch

Delivery $17.35

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

$599.99

Casio G-shock G-steel Gst-b100d-1a Black Solar Bluetooth Analog Metal

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

$630.55

Casio Men's Shock Master Of Steel Analog Watch Gstb100d-1a

Delivery $39.43

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

$673.51

Casio G-shock G-steel Gst-b100d-1ajf Bluetooth Solar Silver 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!

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 6 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

$332.82

Casio G-shock Gst-b100d-1ajf G-steel Solar Bluetooth Men Watch Used

Delivery $31.55

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

$438.08

Casio G-shock G-steel Gst-b100d Solar Quartz 45mm Silver Men’s Watch

Delivery $17.35

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

$462.33

Casio G-shock Gst-b100d Tough Solar Analog Men's Watch Silver

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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