
Large Air Support Crown Upgrade
Comfort Crown fits all ST19 based Air Support 40 mm hand winding chronographs. Fits into existing stem. Should be installed by qualified watch maker.
Comfort Crown fits all ST19 based Air Support 40 mm hand winding chronographs. Fits into existing stem. Should be installed by qualified watch maker.
Description
Comfort Crown fits all ST19 based Air Support 40 mm hand winding chronographs. Fits into existing stem. Should be installed by qualified watch maker.






















