Ressort principal pour les montres-bracelets à remontage manuel.
Convient aux calibres suivants :
AMI 510, AMI 515, AS 1003, AS 1156, AS 1159, AS 1180, AS 1726, AS 1727, AS 970, BEN BM, BEN BMA-BM401, BEN EA, BID 69/1 KAL, BID 691KAL, BLF 6N1L, BLF 6P2K8, BUL 1001.20, BUL 1080.30, BUL 1100.10, BUL 1100.11, BUL 1100.20, BUL 8AL, BUL 8L, BUR 355, BUR 356, BUR 357, BUR 358, BUR 359, CAR 1080.60, CAR 10OC, CAR 309, CAR 6OE, CAR 6OF, CAR 6UA, CAR RK, CAR RP, CON 453A, DUR 69-21 INT, ELG 696, ELG 697, ELG 747, ELG 749, ELG 794, ELG 799, ELG 887, ELG 937, FE 163-3, FE 163-4, FF 60, FF 60 CALENDAR, FF 60-2, FF 60-21, FF 601, FF 608, FF 608-21, FF 609, FF 69, FF 69-21, FF 69-21 M6, FF 69-21 M8, FF 691 N, FF 692, FF 692-M8, FF 69N, FF 69N-M6, FF 69N-M8, GP 80 OLD, GP 81 OLD, GP 85 OLD, GP 87 OLD, GRU 202, GRU 220, GRU 222, GRU 222R, GRU 227R, HAM 603, HAM 749, HAM 749A, HB 80, HB 81, HB 82, HB 90, HB 900-75, HEL 301, ILL 600, JUB 602, JUB 69-21, JUB 69/21, JUB HB90, JUD 3.69-M6, JUD 3.69-M8, JUD 3.691, JUD 3.691-M6, JUD 3.691-M8, JUD 369 (INT S), JUD 3691, KF 15-10, KF 15-14, KF 19-14, KF 270
