Winding stems    Balance staffs    Mainsprings

sw 18/4 ETA mainspring 1316 1305 1307 1308 1309 1315 1317 1318 1319 1320 automatic

11.9 EUR 1 Mainspring / Ressort de barillet / Zugfeder New old stock / neuf de stock For ETA calibers  1316 1305 1307 1308 1309 1315 1317 1318 1319 1320 automatic movement (attached bridle / bride...

sw 21/4 Venus 170 click spring / part 430

6.9 EUR Venus 170 click spring / ressort de cliquet Part 430 Pre-owned / pre-used

sw 21/4 Venus 170 minute wheel spring / part 476

6.9 EUR Venus 170 minute wheel spring / ressort de minuterie Part 476 Pre-owned / pre-used

Pierce winding stem 13"' 134 chrono (short) Bestfit 725

7.9 EUR 1 tige de remontoir Pierce / 1 Pierce winding stem Neuf de stock / New old stock (minor sign of age, see pics) For caliber 134 chrono (13"') - short length Square A/E : 100/205 Shoulder B : -- Hub...