Accutron® 7700 Waterproof Crown CN-ACC21 Accutron® 7700
steel with LOGO, genuine Accutron® 7700, outside diameter 5.00 mm, tube diameter 2.50 mm, tap 1.10 mm, height 2.60 mm, case reference 7700
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Accutron®. Accutron® warranty does not apply to parts supplied by H. & W. Perrin Company Limited. Using generic crystals may devalue your watch.