Felsa 390-445, Setting lever spring

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FELSA original part. NOS without factory packaging. Fits cal: 390, 391, 394, 395, 399, 750 -756 Data Felsa/AM 390 15/17 jewels, manual wind sub-second. S: = 12''' 26.6 mm. H: = 3.8 5 mm. N: = 18.000 A/h. Power reserve: 45h. Mainspring: 1.70 - 10.5 x 0.12 x 320 Show more