Longines® Dustproof Crown CN-LONG25 diameter 3.50 mm lathe accessories Refills are available for this

Refills are available for this assortment

Jaeger LeCoultre® barrel complete with mainspring

Durowe 570

Durowe 441

Continuous tone when testing moissanite

Longines® Dustproof Crown CN-LONG25 diameter 3.50 mm lathe accessories Refills are available for thisLongines Dustproof Crown CN LONG25 diameter 3. 50 mm yellow, normal square with wings logo, diameter 3. 50 mm, height of crown only 2. 05 mm, tap 0. 90 mm, total height of crown including pipe 3. 20 mm * Perrin Supply Ltd is independent of and not affiliated with or sponsored by Longines. Longines warranty does not apply to parts supplied by Perrin Supply Ltd. Using generic crystals may devalue your watch.