Genuine FORTIS steel crown, sablé, screw system
Crown diameter: 7.5 mm
Tube diameter: 4.0 mm
Thread diameter: 0.9 mm
Suitable for FORTIS B42 models with a tube diameter of 2.5 mm on the case side and reference number:
635.10., 636.10.,637.10., 638.10., 639.10., 640.10., 641.10., 643.10.
Product safety information
Manufacturer information:
Fortis Watches
www.fortis-watches.com
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