Pierce Monopusher Chronograph Value Guide

This 1940s Pierce Monopusher Chronograph is a standout Swiss timepiece featuring a unique vertical friction clutch movement developed in Bienne. Highly collectible for its dual-purpose design, it served both pilots and medical professionals with its integrated red pulsometer scale for measuring heart rates.

What affects the value of Pierce Monopusher Chronograph?

• The operational condition of the complex vertical friction clutch, which can be difficult to service.
• The preservation of the gold plating on the case, particularly around the lugs and the monopusher.
• Dial legibility, specifically the crispness of the red pulsometer scale and original 1940s typography.
• The presence of original components like the acrylic crystal and period-correct leather strap.

How to Identify Pierce Monopusher Chronograph?

• Verify the presence of the single pusher integrated into the crown or at the 4 o'clock position for start-stop-reset functions.
• Check for the distinct red pulsometer scale printed on the outer edge of the dial specifically calibrated for medical use.
• Examine the movement for the signature Pierce vertical clutch system rather than a standard horizontal coupling.
• Look for the 'Swiss Made' marking at the bottom of the dial and the characteristic gold-plated case with a stainless steel back.

History of Pierce Monopusher Chronograph

Founded in Bienne, Switzerland in 1883, Pierce became famous for its unique vertical friction clutch chronograph movements. During the 1940s, they were widely respected for their pilot and medical watches, including this monopusher design which allowed doctors to measure pulse rates via the red scale on the dial.