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HAC/HAU group performing acts of service

Clock mechanisms from early 20th-century German manufacture, purchased through an online auction for estates, are the focus of this article post-service. Post-servicing, the inescapable step is to tackle the grime and...

HAU/HAC faction providing services
HAU/HAC faction providing services

HAC/HAU group performing acts of service

In the heart of Ottawa, a unique treasure was discovered on the local Facebook Marketplace – a Hamburg Amerikanische Uhrenfabrik (HAU) shelf clock. This German clock, known for its reliability and quality, was a product of the Hamburg American Clock Company (HAC), a renowned manufacturer founded in 1873. The company, which gained a strong reputation for its mechanical clock movements, was later acquired by Junghans in the late 1920s.

The clock in question is a classic HAU shelf clock, a testament to the company's commitment to producing well-made commercial timepieces. Its movement, designed for regulator and wall clocks, features precise pendulum escapements and countwheel striking systems, making it an excellent choice for an English time and strike clock.

Upon purchase, the clock's strike side mainspring had been replaced at some point in its life, while the time side mainspring, marked with the HAC cross arrows and appearing to be original, was in good working order. The movement required a total of 9 bushings for servicing, with some pivots requiring 2.50mm OD bushings for the bushing work. After careful cleaning, inspection, lubrication, and adjustment, the movement was assembled and oiled, ensuring smooth operation.

The next step in the restoration process is to service the case of the clock, a crucial step in preserving the clock's overall condition. Once serviced, the clock will continue to run accurately, with winding the 14-day movement once per week ensuring more accurate timekeeping.

For those interested in identifying an HAU clock movement, look for markings that say "Hamburg Amerikanische Uhrenfabrik," "HAU," or sometimes "HAC." The clock typically has an 8-day countwheel strike mechanism, a wooden wall clock case with a glass panel displaying the pendulum, and an off-white face with Arabic numerals and a classic regulator style.

Servicing an HAU clock involves typical mechanical clock maintenance, focusing on the mainspring barrel, countwheel strike, and escapement components. For those unfamiliar with servicing mechanical movements, consulting a professional clockmaker experienced with German regulator clocks is recommended.

This refurbished HAU shelf clock is a testament to the enduring quality of German clockmaking, a piece of history that continues to keep accurate time after over a century. Its journey from an Ottawa Facebook Marketplace to a well-oiled timepiece is a reminder of the joy and satisfaction that comes from restoring and preserving these treasures of the past.

  1. As the restoration process progresses, the vintage HAU shelf clock will be paired with smart-home devices, enhancing its value as a gadget in today's technology-driven world.
  2. After the servicing of the HAU clock and the integration of smart-home devices, it will elevate from a simple timepiece to a sophisticated gadget, combining the charm of vintage clocks with the convenience of modern technology.

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