Introducing the A. Lange & Söhne B-Uhr FL 23883 military observation watch: B-Uhr watches guided German bombers during the horrific campaigns of World War II, dropping bombs in the air with disastrous consequences. The B-Uhr remains an impressive timepiece. Each one featured a Breguet balance spring. Inside, the movement was encased in an iron core, making the B-Uhr antimagnetic – essential for aviation. To correct time discrepancies, the movements could stop the central seconds hand by pulling the crown, and the enlarged onion-shaped crown could be operated with gloves. Movement: Signed A. Lange & Söhne, cal. 48.1, Movement serial number: 214942 Case number: 214942 Crystal: Acrylic (old, original, with minor scratches) Hands: Oxidized steel, luminescent Strap type: New, black, genuine leather strap Black dial with luminescent Arabic numerals in original condition. The stainless steel case shows no significant signs of wear. The hand-wound movement is in very good condition and keeps time accurately. MEASUREMENTS: Diameter without crown: 55 mm Diameter with crown: 61 mm Width from lug to lug (length): 66 mm Thickness: 18 mm Lug width (strap): 27 mm Important information for buyers outside the European Union If purchasing from outside the EU, please note that any applicable customs duties, import taxes, and related fees in the relevant country are the sole responsibility of the buyer. Furthermore, return shipping costs are the responsibility of the buyer, including all associated costs. Therefore, please shop carefully. Thank you for your understanding. Tracked and insured shipping 50 EUR ( Worldwide )