Original U.S. military-issued mechanical wristwatch Stocker & Yale Sandy 490, manufactured to the MIL-W-46374 Type I specification. This is a genuine U.S. military contract watch, not a civilian model or reproduction. The watch is fully functional, with original dial and hands featuring H3 tritium (naturally no longer luminous). Case is in good condition with normal signs of use. A highly desirable example for military watch collectors. Water resistance according to original military specification. Due to age, water resistance is not guaranteed. Original U.S. military-issued watch. No relume, no aftermarket parts, no restoration.