A sapphire crystal case back reveals the extremely slender Jaeger-LeCoultre 925 Calibre, measuring a mere 4.9 mm, and the oscillating weight with its 22-carat gold weight component. Its oscillations automatically wind the watch.
A sapphire crystal case back reveals the extremely slender Jaeger-LeCoultre 925 Calibre, measuring a mere 4.9 mm, and the oscillating weight with its 22-carat gold weight component. Its oscillations automatically wind the watch.
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