FOR SALE CASIO G-Shock Gravity Master Good used condition Owned from New. Fully working order. The Casio G-Shock GA-1000-A Gravity Master Watch is a stylish and durable timepiece designed for men. Featuring a quartz movement for accuracy, this wristwatch has a 200m water resistance, making it suitable for various water activities. The watch has a black resin case and strap, with Arabic numeral indices and a black dial. The buckle closure and two-piece strap provide a secure and comfortable fit. This elegant and functional watch is a perfect choice for those looking for a reliable timepiece that can withstand the toughest conditions.