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.
in 2 offers
last seen 10 May 2026
The lowest price we last saw for Casio Watch G-Shock G-Steel Smartphone Link GST-B100B-1A3JF Men's Black New was $899.00 at Watches 2 U, compared across 2 retailers (last seen 10 May 2026). Prices may have changed since.
The all-time low we recorded was $595.38 on 27 Feb 2026.
Prices last updated 10 May 2026.
Casio Watch G-Shock G-Steel Smartphone Link GST-B100B-1A3JF Men's Black New
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.
Last updated at 10/05/2026 20:17:32
G-Shock GSTB100B-1A3
Free delivery
Casio G-SHOCK G-STEEL GST-B100B-1A3JF Smartphone Link Watch
Delivery between 12–23 May $6
originally posted on influenster.com
I just biught this watch because i wanted a dressier watch, but not overdone. The metal bezel is gorgeous, the "tough solar" is a real nice addition to the watch. The turbine battery display on the left is just a gorgeous addition with the red accents across the watch. The Bluetooth connection to set the time is absurdly nice, as the watch is reading true time. Overall, this watch is a well made piece!
originally posted on watches.com
I have a young friend going into the Air Force. He is a big G Shock fan, so I decided to get him a going away gift. I chose this watch for it's features like Bluetooth and self adjusting to different time zones. I wanted him to have something adult as well as useful. A watch is one one the few things he was allowed to bring with him. He was totally blown away with his watch. When I asked him if he liked it he said "no, I love it. Watches make great gifts for military personnel, especially G Shock.
originally posted on watchdirect.com.au
This is my first full metal G-Shock watch and I'm extremely impressed with the quality and how it fits so so nicely on my arm. The price was fantastic as was the communication and the postage was unbelievably quick. I will definitely be purchasing from Watch Direct again. Thank you!!
| Year Manufactured | 2020 |
| With Original Box/Packaging | Yes |
| Case Size | 54 mm |
| Band/Strap | Bracelet |
| Case Thickness | 14.1 mm |
G-Shock GSTB100B-1A3
Free delivery
Casio G-SHOCK G-STEEL GST-B100B-1A3JF Smartphone Link Watch
Delivery between 12–23 May $6
I just biught this watch because i wanted a dressier watch, but not overdone. The metal bezel is gorgeous, the "tough solar" is a real nice addition to the watch. The turbine battery display on the left is just a gorgeous addition with the red accents across the watch. The Bluetooth connection to set the time is absurdly nice, as the watch is reading true time. Overall, this watch is a well made piece!
I have a young friend going into the Air Force. He is a big G Shock fan, so I decided to get him a going away gift. I chose this watch for it's features like Bluetooth and self adjusting to different time zones. I wanted him to have something adult as well as useful. A watch is one one the few things he was allowed to bring with him. He was totally blown away with his watch. When I asked him if he liked it he said "no, I love it. Watches make great gifts for military personnel, especially G Shock.
This is my first full metal G-Shock watch and I'm extremely impressed with the quality and how it fits so so nicely on my arm. The price was fantastic as was the communication and the postage was unbelievably quick. I will definitely be purchasing from Watch Direct again. Thank you!!
Love the watch: the feel, the weight, the stainless steel look, the complications. Only issue: for some reason my DoW (i.e., hand pointing to M T W Th F S S) setting keeps resetting itself to an incorrect day. I have set it twice now and can't determine what is causing it to reset itself.
I had been looking at this particular watch for a while and finally I decided to get it. It's a very nice watch, looks and feels good. I like everything about it! It's Bluetooth and solar powered! I'm very happy with my purchase.
Great looking watch. Quite large on wrist but not so that it looks out of place. Very easy to set up, just download the G-Shock app, connect the watch and within five minutes your watch will be set up. Dial is very clear and being quite a large watch is very easy to see. Very happy with my purchase, great quality and lots of compliments every time I wear it. Highly recommended.
We purchased a G-Shock Stainless Steel watch for our son and it is incredible! Watch Direct delivered within days from order which was amazing!I highly recommend Watch Direct if you are looking for a high quality piece and fast delivery. A+++++
Love this watchFeels and looks goodHas date, days, stopwatch, timer, alarm two world times.Connects to your phone app with Bluetooth which you can use to adjust all the features mentioned above.There is also a find button on the watch, which should let you find your phone.It’s not very good as most of the times it doesn’t work.
the watch is amazing , great size and has a nice weight feel to it. Looks classy and stands out compared to other gshocks. The Bluetooth is a nice feature and the watch is also solar powered. would I recommend? YES! I don't regret this purchase and will surely be buying more of the g-steel series watches
| Year Manufactured | 2020 |
| With Original Box/Packaging | Yes |
| Case Size | 54 mm |
| Band/Strap | Bracelet |
| Case Thickness | 14.1 mm |
