TUTIMA genuine parts Brand: Tutima Models: FX Chronograph FX Aoutmatic, etc. Reference number: 740,741,781,631,633,634 etc. Part Name: Crown only Crown Size:Outer diameter about 7.0mm Screw-down Crown It can be installed on the new tube. The new tube has a crown insertion size of φ3.2mm. Surface treatment: Polish Product number:-----
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