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Antique Watchmaker Balance Truing Caliper Patent April 2 1907 Vintage Horology T - $75
condition:
good
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For sale is an authentic, antique watchmaker balance wheel truing caliper (traditionally known in horology as a "Huit-Chiffre" or figure-eight caliper). This specialized tool was engineered for watch repair, allowing watchmakers to spin an ultra-delicate balance wheel suspended by its micro-pivots to inspect for alignment, flatness, and concentricity.
Features & Details:
• Historical Patent Stamp: Clearly stamped "PAT. APR. 2 '07" (April 2, 1907) along the index arm housing.
• Integrated Gauge/Index Arm: Includes the rare, vintage adjustable caliper index arm assembly mounted to the left jaw to visually check for alignment gaps.
• Smooth Operation: The central knurled thumbwheel functions smoothly to evenly actuate and adjust the parallel jaws.
• Authentic Patina: Beautiful, unaltered aged finish expected of a turn-of-the-century bench tool. No heavy rust or cracked components.
Perfect addition for a horology collector, a traditional watchmaker's bench display, or a specialist looking for early 20th-century American watchmaking tools.
Please review photos closely for exact physical condition. Message with any questions!
Tags:
#WatchmakerTools #Horology #AntiqueTools #VintageWatchRepair #Watchmaking #TruingCaliper #HuitChiffre #1907Patent #CollectibleTools