Winding stems    Balance staffs    Mainsprings

Landeron mainspring 4 5 6 7 117 17 18 19 20 220

10.9 EUR  Landeron mainspring / ressort de barillet Inox premium quality It fits all Landeron following calibers :  4 5 6 7 117 and also 17 18 19 20 220 Neuf de stock / New old stock

Landeron mainspring 48 51 148 149 151 189 248 349

13.9 EUR 1 Landeron 48 mainspring / 1 ressort de barillet It fits all Landeron following calibers : 48 51 54 55 82 85 86 148 149 151 152 153 154 155 180 181 185 186 187 189 203 248 254 349 Neuf de stock /...

Landeron mainspring 15 39 52 53

21.9 EUR Landeron 39 inox mainspring / ressort de barillet Inox premium quality It fits all Landeron following calibers :  15 39 52 53 Neuf de stock / New old stock