1055 Watch Mainspring 1.70 x 0.10 x 318 (12 1/2")(Calibers in description) metal band bracelet screw assortments Old part number T640

Old part number T640

Genuine Omega® operating lever

a date indicator at the 6 o'clock position and a power reserve indicator at the 9H30 position

fits Omega® case REF 1660190

4mm Gray Watchmakers' Screwdrivers

1055 Watch Mainspring 1.70 x 0.10 x 318 (12 1/2")(Calibers in description) metal band bracelet screw assortments Old part number T640Dimensions: 1. 70 x 0. 10 x 318 (12 1 2") End Type: Tongue End Material: Swiss Made Unbreakable Calibers: Alpina 647, Benrus AJ, Bulova 10AF, FHF 30, FHF 30 1, FHF 31, FHF 55PS, FHF 65, FHF 70, FHF 70 1, FHF 70 1 2, FHF 70 1 2 N FHF 70 2, FHF 70 2N, FHF 90, FHF 701, FHF 701 1 8, FHF 701 2, FHF 701 2N, FHF 702, FHF 707 1 8, FHF 7010, FHF 7011, FHF 7012, FHF 7013, FHF 7014, FHF 7015, FHF 7016, FHF 7017, FHF 7018, Gruen 785, Waltham 1155, Waltham 1157,