ZENITH 2572P-1143/1, Oscillating weight - Mint Condition

Genuine ZENITH oscillating weight, complete with ball bearing Scourced directly from a "safe queen" watch that saw virtually no wrist time, meaning that it shows zero historic wear or typical rotor scraping. Condition: Near-mint / New Old Stock (NOS) apperance. Technical Inspection: Fully ispected, tested, and approved by a professional Wostep-Certified watchmaker. The central ball-bearing is perfectly tight, spinning smoothly and freely. Comapility: ZENITH in house calibers: 2572P, 2572PC and 2552P/PC, 2562P/PC If you are restoring a high-end vintage ZENITH or want a flawless replacement part that meets factory standards, this is as good as it gets. The ZENITH 25XX Family: Versions with 18.000 A/h. 2510: 18 jewels, manual wind, no second. 2511: 18 jewels, manual wind, sub second. 2522: 17 jewels, manual wind, center second. 2522C: 17 jewels, manual wind, center second, date. 2522P: 17/28 jewels, automatic, center second. 2522PC: 17/28 jewels, automatic, center second, date. Versions with 21.600 A/h and exentric regulator. 2530: 19 jewels, manual wind, no second. 2531: 19 jewels, manual wind, sub second. 2532: 19 jewels, manual wind, center second. 2532C: 19 jewels, manual wind, center second, date. 2532P: 30 jewels, automatic, center second. 2532PC: 30 jewels, automatic, center second, date. 2540: 17 jewels, manual wind, no second. 2541: 17 jewels, manual wind, sub second. 2542: 17 jewels, manual wind, center second. 2542C: 17 jewels, manual wind, center second, date. 2542P: 25 jewels, automatic, center second. 2542PC: 25 jewels, automatic, center second, date. 2552C: 17 jewles, manual wind, center second, date. 2552P: 17/23 jewels, automatic, center second. 2552PC: 17/23 jewels, automatic, center seond, date. Versions with 28.800 A/h and exentric regulator. 2562: 17 jewels, manual wind, center second. 2562C: 17 jewels, manual wind, center second, date. 2562P: 23 jewels, automatic, center second. 2562PC: 23 jewels, automatic, center second, date. Versions with 28.800 A/h and micrometer regulator (1975-78). 2572: 17 jewels, manual wind, center second. 2572C: 17 jewels, manual wind, center second, date. 2572P: 17/23 jewels, automatic, center second. 2572PC: 17/23 jewels, automatic, center second, date.