I have a question about replacement batteries for G-shock. I have a GA-100 G-Shock and was wondering if a CR2032 or a CR2025 battery from the newer models work? The original battery on the GA-100 is a CR1220 with a battery life of approx. 2 years while the CR2032 is 10 years and the CR2025 7 years. I read the manual for the GA-100 G-shock and it says to use the specific battery for that model.