A. LANGE and S÷HNE B-UHR WORLD WAR II GERMAN AIR FORCE (LUFTWAFFE) A. Lange and Sˆhne, Beobachtungsuhr (Navigation Watch), No. 215224, Instrument No. 127-560 A-1, Requisition No. FI. 23883. Made in 1942. Very fine and very rare, oversized, anti-corrosion matte nickel military pilot's wristwatch with indirect center seconds. Three-body, matte gray, inclined bezel, concave lugs, large winding crown, snap-on case back, band engraved "FL 23883," back engraved with movement number 215224. Black with luminous 60-minute Arabic numerals and baton indexes, concentric 12 hour graduation with luminous Arabic numerals, outer minute/seconds division. Luminous blued steel lozenge hands. Cal. 48.1, 2/3 plate, gilt brass, straight-line lever escapement, cut bimetallic balance, blued steel Breguet balance spring, index regulator.