Pocket watch: rare, sought-after school chronometer, calibre 49.9

Ca. Ø60mm, metal case glazed on both sides, Anker chronometer calibre 49.9 with gold-screw chronometer balance wheel, signed, silvered dial, steel hands, very good condition, in working order. The calibre is a design developed by the school itself, featuring a recessed balance wheel. It very rarely appears on the market, as these were mostly masterpieces produced by the school.

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