LA SAG 64.0636 Flat Round Quartz Watch Crystal Glass Lens

The LA SAG 64.0636 is a new, Swiss-made flat round quartz (mineral glass) watch crystal, packaged individually in the manufacturer's standard glassine/paper envelope with lot code F 47265. LA SAG (Laubscher & Cie SA, Bévilard, Switzerland) is a long-established Swiss supplier of watch crystals and related spare parts; the part number 64.0636 follows their catalog numbering convention for flat/low-dome round mineral glass crystals, where the trailing digits encode the nominal diameter. This crystal is manufactured in Switzerland — as confirmed by the Country of Origin label on the packaging — and is intended as a replacement or service crystal for compatible watch cases requiring a round flat quartz glass of the corresponding diameter. It is supplied new-old-stock in its original sealed envelope and is suitable for watchmakers and horological repair professionals undertaking case-side crystal replacement on vintage or current production watches.

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