This exceptional timepiece represents a rare artifact of World War I naval history, specifically issued or awarded to a U-boat officer of the Imperial German Navy (Kaiserliche Marine).
During the Great War, Germany’s submarine fleet revolutionized naval warfare. Operating in incredibly tense, cramped, and dangerous conditions beneath the waves, U-boat commanders and officers relied entirely on precise timekeeping for navigation, torpedo calculation, and coordinating surface attacks.
The choice of a Hebdomas 8-Day watch is highly significant for naval use. The revolutionary 8-day mainspring meant an officer only needed to wind the watch once a week, reducing the margin for human error and ensuring continuous, reliable operation during long, grueling submarine patrols. This piece is not just a high-complication mechanical achievement; it is a meticulously preserved piece of military heritage.
Item Specifications Maker: Hebdomas Era: c. 1916 (World War I)
Case Diameter: 50mm
Movement: 8-Day Mechanical, Manual Wind, “Spiral Breguet”
Dial Style: White Enamel with Silver & Gold Floral Accents Numerals: Arabic Numerals
Military Branch: Kaiserliche Marine (Imperial German Navy)
Design & Condition Highlights The Dial & Complication:
The flawless white enamel dial features an exposed balance wheel at the 6 o’clock position, allowing the user to view the beating heart of the escapement. The dial is elegantly appointed with crisp Arabic numerals, completely free of hairlines, and flanked by intricate silver and gold-toned floral inlay.
Military Engravings: The silver-toned case back features a deep, prominent engraving. The Gothic script reads “Kaiserliche Marine” framing a sharp, stylized Iron Cross motif that houses the distinct silhouette of a WWI-era U-boat. The sharpness of the engraving indicates it was highly respected and carefully carried.
The Movement Cover: The inner gold-toned dust cover is a masterclass in horological pride, richly stamped with the maker’s accolades. It proudly displays the exhibition medals from Milan (1906) and Brussels (1910), along with the hallmarks “8 Jours,” “Spiral Breguet,” and “Levees Visibles,” attesting to its robust, high-grade engineering.
This is a profound opportunity to acquire a pristine, historically vital military timepiece. Perfect for the discerning collector of serious naval artifacts, complex antique horology, and museum-caliber World War I militaria. Fully authenticated and ready for a premier collection.
$2500 APPRAISAL CERTIFICATE
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