Pocket Watch Rare W. Ehrhardt London Military Mark IVA 8-Day circa 1920s

Rare W. Ehrhardt London Military Mark IVA 8-Day Pocket Watch circa 1920s

A highly collectible British military issue pocket watch signed W. Ehrhardt, London, featuring the desirable Mark IVA 8-Day designation. Manufactured in the early 20th century, this robust military timepiece was designed for reliability and extended running time, operating for up to eight days on a single winding. This watch was built for service use and represents an important part of British military horological history. Examples signed by W. Ehrhardt are increasingly sought after by collectors of military watches, aviation instruments, and early 20th-century timepieces.

DIAL: The watch features a golden coloured enamel dial with bold Arabic numerals, blued steel hands, subsidiary seconds at 6 o'clock, and the original military-style layout. The dial is marked: “No. 121AF W. Ehrhardt, London, Mark IVA, 8 Days"

MOVEMENT: The 8-day anchor lever movement has blued screws and is numbered: 141269. The movement is in good working condition as it just came back from the watchmaker however, we cannot guarantee accuracy for an antique pocket watch. 

CASE: The watch lies in a steel open face case. The case is signed at the back: WD with an arrow in the middle: This stands for: War Department issued pocket watch, C 1914. 

History- W. Ehrhardt: William Ehrhardt was a German-born watchmaker who established one of Britain's most important watch manufacturing businesses. The company operated from Birmingham and later maintained a London office, hence the signature "W. Ehrhardt, London" seen on many military watches. Ehrhardt supplied watches, deck watches, chronometers, and military timepieces to British government departments and the armed forces during the late Victorian period and the First World War era. 

Terminology “8 days”: The term "8 Days" refers to the watch's power reserve. Unlike a standard pocket watch that typically runs for 30–40 hours before requiring winding, an 8-day watch can run for approximately one full week plus one day from a single winding. This was achieved through a much larger mainspring and movement design. 

Terminology “Mark IVA”: “The Mark IVA” designation was a British military specification originally developed for military and aviation use. These watches were valued because soldiers, engineers, and aircrew did not need to wind them daily. W. Ehrhardt was among the firms that supplied Mark IVA 8-day watches under military contracts. 

Signed: W. Ehrhardt- English Made –1914 – 

For the English Military

Diameter: 51 mm – Weight: 111.7 g