G-Shock Full Metal Watch. GMB2100BD-1A - The "Full Metal" Midnight Oak

The GM-B2100BD-1A is a study in Shadow and Steel. Unlike the "Metal-Covered" (GM) versions that use a resin inner case, this is a Full Metal Construction—the bezel, the case, and the bracelet are all solid stainless steel. The watch features a sophisticated dual-finish: vertical hairline brushing on the top surfaces of the octagonal bezel and mirror-polishing on the slanted edges, creating a "Liquid Obsidian" effect that catches the light even in a black-out finish.
The dial features a black vapor-deposition finish on the indexes and a high-torque analog handset, giving the face a metallic depth that feels like the cockpit of a stealth fighter.

Key Performance Features

Full Stainless Steel Black IP: A solid metal bracelet and screw-back case treated with a deep black Ion Plating for superior scratch resistance and a heavy, premium weight (165 g).

Screw-Back Case Construction: Features a solid steel inner housing with a DLC-coated (Diamond-Like Carbon) screw-down back, mirroring the structural integrity of the original 1983 G-SHOCK.

Smartphone Link (Bluetooth®): Pairs with the G-SHOCK app for automatic time adjustment, easy world time settings for 300+ cities, and a "Phone Finder" function.

Tough Solar Power: High-efficiency solar panels integrated into the dial ensure the high-torque analog motors and Bluetooth functions never run out of power.

Ultra-Slim Profile: Despite the full metal screw-back construction, it maintains a remarkably slim 12.8 mm profile, making it the sleekest "Full Metal" analog model available.

Fine Resin Buffer: A specialized resin cushioning layer between the metal bezel and the inner case ensures the watch meets G-SHOCK’s elite shock-resistance standards.

200m Water Resistance: Fully professional-grade protection—this "Stealth Suit" is built for the deep sea.

In the Box
Premium Full-Metal Presentation Box, G-SHOCK GM-B2100BD-1A "Full Metal Black," Metal Bracelet Adjustment Tool, and Warranty.