B-Uhr – German WWII Observation Watch – Laco B-Uhr navigation watches served aboard German bomber aircraft during the dramatic and turbulent campaigns of World War II. Despite their dark historical context, these timepieces remain extraordinary examples of military horology and precision engineering. Each B-Uhr featured a Breguet balance spring and was housed within an inner iron core, making it antimagnetic—an essential characteristic for aviation instruments exposed to cockpit equipment. For precise time synchronization, the movement allows the central seconds hand to be stopped by pulling the crown. The large onion-shaped crown was specifically designed for easy operation while wearing flight gloves. Technical Details Movement: Signed Laco, 22 stones Movement Serial Number: H16054 Case Number: 127150B Crystal: Mineral Hands: Oxidized steel, luminescent Strap: Brown genuine leather Dial & Case The black dial with luminous Arabic numerals remains in original condition, preserving its authentic military character. The stainless steel case shows no significant signs of wear, consistent with careful preservation. Movement Condition The mechanical, hand-wound movement is in very good condition and keeps accurate time. Dear Buyer, please remember that you are bidding on a vintage timepiece. We make every effort to ensure each watch is presented in the best possible condition for its age, including professional servicing of the movement. However, **water resistance cannot be guaranteed. Measurements Diameter without crown: 55 mm Diameter with crown: 61 mm Lug-to-lug length: 66 mm Thickness: 21 mm Lug width (strap): 27 mm Important Information for Buyers Outside the European Union If purchasing from outside the EU, please note that any customs duties, import taxes, or additional fees imposed by your country are the **sole responsibility of the buyer. Return shipping costs—including all associated fees—are also the responsibility of the buyer. Please review the listing carefully before placing your bid.