Longines® Dustproof Crown CN-LONG29 diameter 3.75 mm
yellow, normal square with “wings” logo, diameter 3.75 mm, height of crown only 1.75 mm, tap 0.90 mm, total height of crown including pipe 2.70 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.