Vintage 29mm Vacheron & Constantin Brown Dial Wristwatch Movement P453/3C Swiss It is missing the regulator

It is missing the regulator spring for the balance cock

Jewels: 16J

Model: Triple Date Moonphase Incabloc

Timing Data: -43 seconds/day

About Lejour:

Vintage 29mm Vacheron & Constantin Brown Dial Wristwatch Movement P453/3C Swiss It is missing the regulatorProduct Description Item: Wristwatch Movement Brand: Vacheron & Constantin Model: Brown Dial Movement: Mechanical Jewels: 17 Caliber: P453 3C Country: Swiss Gender: Unisex Product Measurements Diameter: 29mm Product Condition Overall Condition: Poor, overall condition Functions: Running, but may be in need of service. This means, it can run unreliably, start or stop and timekeeping is not guaranteed Dial condition: Has hairline cracks and spotting.