Hammond Synchronous Electric Clock Value Guide

The Hammond Synchronous Electric Clock is a landmark of 1930s American engineering, representing Laurens Hammond's revolutionary shift toward maintenance-free, plug-in timekeeping. These clocks are highly collectible for their distinct Art Deco aesthetics and their historical connection to the inventor who later created the world-famous Hammond organ.

What Is Hammond Synchronous Electric Clock Worth?

The typical price range for Hammond Synchronous Electric Clock is $80 - $120 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• Condition of the Art Deco exterior, specifically looking for original wood finishes and lack of cracks in the plastic components.
• Operational status of the synchronous motor, as many vintage units require rewiring or coil repair to run safely on modern current.
• Rarity of the specific case design, with more elaborate geometric Art Deco patterns commanding prices toward the $120 range.
• Originality of the power cord and plug, though replaced cords are common and often preferred for safety.

How to Identify Hammond Synchronous Electric Clock?

• Look for the 'Hammond Clock Company' or 'Hammond Instrument Co.' branding on the dial or the rear metal plate.
• Verify the presence of the synchronous motor housing, which lacks the traditional winding arbors found on mechanical clocks of the era.
• Check for authentic 1930s materials including solid wood cases, spun metal bezels, and early plastic or glass crystals.
• Confirm the 'Synchronous' label on the face, indicating it was designed to run on stable alternating current.

History of Hammond Synchronous Electric Clock

The Hammond Clock Company, founded by Laurens Hammond in 1928, revolutionized timekeeping with its synchronous electric clocks. Unlike previous electric clocks, Hammond clocks did not require manual winding and kept precise time as long as they were plugged into a stable alternating current electrical outlet. This innovation made them incredibly popular during the 1930s and 40s, and they became a staple in many American homes, often showcasing the popular Art Deco design trends of the era. The company later became famous for its Hammond organs.