GG-W-113 U.S 1960s Pattern Handwound Military Watch with Plexiglass Crystal and Mechanical Movement 20mm NATO Straps which is both shatter and

which is both shatter and scratch resistant

but this video provides a clear demonstration: How to Install a Marine Nationale Strap

and no battery consumption

Movement: 24 Jewel NH35A Automatic Movement

GG-W-113 U.S 1960s Pattern Handwound Military Watch with Plexiglass Crystal and Mechanical Movement 20mm NATO Straps which is both shatter andSKU: GGW113 HW26 Recreating a Vietnam War Classic Built to Original Military Specifications The GG W 113 infantry watch traces its origins back to October 1962, when the U. S. government issued MIL W 3818B specifications to replace the earlier 1956 standard (MIL W 3818A). These watches, produced by Hamilton, Benrus, and Bulova, became the trusted companions of American troops during the Vietnam War and are now icons of military watch design. In 2009,