G-Shock FULL METAL 2100 Series Solar Men's Watch GMB2100D-1A Flat Beveled Link Bracelet it uses the H-21-Si

it uses the H-21-Si

This model has 100 metres water resistance

This updated limited edition version features a stainless steel case with blue and red accents and an off white dial

The two-tone dangle charm is shaped as contrasting hearts that join to become one

The green rotating bezel with easy-grip aluminum ring surrounds the green dial and luminous hands and markers

G-Shock FULL METAL 2100 Series Solar Men's Watch GMB2100D-1A Flat Beveled Link Bracelet it uses the H-21-SiMetal Elegance: Silver Full Metal G SHOCK GMB2100D 1A Watch. Elegance expressed in forged steel beating with the heart of G SHOCKs water and shock resistance: thats the GMB2100D 1A. The silver full metal construction undergirds an array of performance tech and radiates sophistication. The polished metal offsets the vapor deposition finish of the black dial, demanding equal attention between the metal bezel and the detail of the dark watch face. The