22.20 mm x 22.20 mm x 1.96 mm (thick), original vintage, square “planex type” (flat top, curved inside) mineral crystal to fit Jaeger-LeCoultre®
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Jaeger-LeCoultre®. Jaeger-LeCoultre® warranty does not apply to parts supplied by H. & W. Perrin Company Limited.