Blog · · 4 min read
G-SHOCK With a Steel Bezel: Casio's Metal Models vs a Mod Kit
In short
There are two ways to get a G-SHOCK with a steel bezel. Casio makes its own: the GM-2100 adds a stainless steel bezel to the octagonal GA-2100 shape at 72 g, and the GMW-B5000 is a full stainless steel square at 167 g. Or you fit an aftermarket steel mod kit to a resin GA-2100, which replaces the bezel and the band for a full-metal look.
Casio's own steel-bezel G-SHOCKs
The GM-2100 is the GA-2100 with a stainless steel bezel. It keeps the same module and the same 11.8 mm thickness, weighs 72 g against the resin watch's 51 g, and wears a resin band.
The GMW-B5000 goes all the way: a stainless steel case and bracelet in the square 5600 shape, at 167 g, with Tough Solar charging, Multi-Band 6 and Bluetooth.
A steel mod kit on a GA-2100
A mod kit is an aftermarket set of stainless steel parts for the resin GA-2100: a metal case in place of the bezel and a steel band in place of the strap. It gives the octagonal watch a full-metal look that Casio's GM-2100, with its resin band, does not have.
Kits come in plain and frosted steel, and ours include silver, black, gold and rose gold finishes.
Which should you choose?
It depends on what you already own and how original you want the watch to stay.
- Choose a GM-2100 for a factory watch with Casio's warranty and a steel bezel on a resin band.
- Choose a GMW-B5000 for a full-metal square with solar charging and Bluetooth.
- Choose a mod kit if you own a GA-2100 and want a steel bracelet look, or a gold, black or frosted finish.
What to know before fitting a kit
A kit is an aftermarket accessory, so it is not covered by Casio. Steel makes the watch noticeably heavier than stock, and custom modifications can affect water resistance. Check that the kit names your exact model before ordering.
Common questions
Does Casio make a metal GA-2100?
Casio makes the GM-2100, which has a stainless steel bezel over the GA-2100 shape and a resin band. A full steel case and bracelet on a GA-2100 comes from an aftermarket mod kit.
How heavy is a G-SHOCK with a steel bezel?
Casio's GM-2100 weighs 72 g, against 51 g for the resin GA-2100, and the full-metal GMW-B5000 weighs 167 g.
Can I get a gold or black metal G-SHOCK?
Yes. One of our GA-2100 mod kits comes in silver, black, gold and rose gold finishes, and our moissanite bezels are plated in white gold, gold or rose gold.