Heuer® (Stopwatch) Black Plastic Timer Crown CN-HEUER18
square / black plastic, diameter 9.30 mm, opening 6.00 mm, height 9.65 mm, 7711, black plastic crown, model 512.901
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Heuer®. Heuer® warranty does not apply to parts supplied by H. & W. Perrin Company Limited. Using generic crystals may devalue your watch.