Product Description
UNIVERSAL BERGEON CROWN GAUGE - SWISS MADE
The Bergeon gauge is used to easily measure the stem thread, crown thread, crown tube, case tube/crowns, and band stops. This tool is essential for repairing a watch crown.
For measuring:
Winding stem thread: dia. 0.6 - 1.2 mm
Crown thread: dia. 0.6 - 1.2 mm
Crown tube: dia. 1.3 - 2.5 mm
Case tube/crowns: dia. 1.3 - 5.0 mm
Band stops: dia. 6.0 - 20.0 mm
Metal gauge size: 3.15" (80mm) x 3.15" (80mm) x .125" (3mm)
Swiss made.