Casio G-Shock GBM-2100A-1A2DR Bluetooth Tough Solar Metal Covered (44.4mm) Sky Blue Dial / Black Bio-Based Resin Strap Men's Watch Khaki Aviation Pilot Pioneer Mechanical Model Specifications: SPB431J1

Model Specifications: SPB431J1

a central 60-seconds chronograph hand

The straps are made from leather and exhibit a variety of finishes

A crystal set rose gold stainless steel case frames the dial

Features:  Sapphire Crystal Glass

Casio G-Shock GBM-2100A-1A2DR Bluetooth Tough Solar Metal Covered (44.4mm) Sky Blue Dial / Black Bio-Based Resin Strap Men's Watch Khaki Aviation Pilot Pioneer Mechanical Model Specifications: SPB431J1Casio is an electronics manufacturing company that was founded in 1946 by Tadao Kashio. The brand has a versatile portfolio, from musical instruments and digital cameras to analogue and digital watches. The company rose to popularity quickly after releasing its first ever product, a cigarette holder, which proved to be a huge success. Casio became involved in electronics in 1954 when they released Japans first elector mechanical calculator. During the