MWC G10BH PVD 12/24 50m Water Resistant Military Watch with Battery Hatch, Fixed Strap Bars and 60 Month Battery LifeSKU Code: G1012 24PVD This model, featuring a U. S. pattern 12 24 hour dial format, is a direct descendant of the G10 watches we produced in the 1980s. It retains the popular battery hatch, a feature many other manufacturers have since abandoned. Initially, the battery hatch was crucial because early quartz watch batteries lasted only about a year. Today, with batteries lasting around five years, the hatch is more of a nostalgic design element, still