Longines® Dustproof Crown CN-LONG40 diameter 4.50 mm
steel, low square with “wings” and name logo, diameter 4.50 mm, height of crown only 1.70 mm, tap 0.90 mm, total height of crown including pipe 2.40 mm
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Longines®. Longines® warranty does not apply to parts supplied by H. & W. Perrin Company Limited. Using generic crystals may devalue your watch.