Received my GM-2100B-3AER in Green today. I have a the mid sized ("ladies") white in resin which I love, but the build quality and overall finish on these metal watches is awesome! :
Amazon.com: CASIO G-SHOCK GM-2100B-4AJF [G-SHOCK 20 ATM Waterproof GM-2100 Series]Shipped from Japan : Clothing, Shoes & Jewelry
CASIO G-SHOCK GM-2100B-4AJF Metal Covered Bezel Analog Digital Watch Red Dial 4549526304781 | eBay
GM2100B-3A | G-SHOCK Metal Covered Silver | CASIO
Casio G-Shock Classic GM-2100B-4AER wristwatches mens quartz | KECHIQ
Casio International Edition G Shock Carbon Core Guard Casioak... for $499 for sale from a Seller on Chrono24
WATCH OUT! CASIO G-SHOCK GM-2100B-3A VS G-SHOCK GA-2100-1A1 - YouTube