Large Lot Vintage Wrist/Pocket watch Jewels Ruby Watchmaker Parts Repair. CAL 21 ST 69/21. 6365 1977 – 2. FF 57 ETA 2510. We have a Very Large Inventory of Replacement Watch Crystals for most Vintage American & Swiss Wristwatches, both Men’s and Ladies sizes. Manufacturers & Casemakers include Omega, Benrus, Bulova, Elgin, Waltham, Hamilton, Wittnauer,…