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

18.9 EUR 1 Landeron 48 mainspring / 1 ressort de barillet Same part for Landeron 48 51 54 55 82 85 86 148 149 151 152 153 154 155 180 181 185 186 187 189 203 248 254 349 Inaltex premium quality New old...

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