The G-Shock GM-2100CH-1A and GM-S2100CH-1A are a “Precious Heart Selection” pair featuring Christmas colors. The watches, available individually, feature gray ion plated stainless steel bezels, black resin bands, and Christmas color accents in red, green, and gold. The GM-2100CH-1A is a mid-size model and the GM-S2100CH-1A is a petite model for women or smaller people.
The G-Shock GM-2100CH-1A and GM-S2100CH-1A were announced for October 2021 in Asia. Precious Heart models are usually not released in western countries, but we will update this post with any additional release information.
Update: The GM-2100CH-1AJF (30,800 yen, tax-included) and GM-S2100CH-1AJF (28,600 yen) are November 2021 releases in Japan.