ZENITH 120-721, Balance, complete
ZENITH original Glucadur Balance complete, sourced from an untouched, factory-original movement. Verified by a WOSTEP-Certified watchmaker.
- Balance staff total height: 3.63 mm, meticulously measured and verified.
- Pivot diameter on both sides: 0.070 mm.
Micro-Tested Geometry: Both upper and lower pivots have been physically measured using a high-precision ICA Feintaster (microcator). The pivots show absolute cencentricity and zero wear, registered at precisely 0.070 mm on both ends. The hairspring is centered and has no damages or marks, absolutely flat.
- Fits ZENITH cal: 120 with Incabloc shock protection.
