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Jaeger-LeCoultre. An unusual stainless steel cushion-shaped automatic prototype calendar wristwatch with sweep centre seconds, hack feature and bracelet
Jaeger-LeCoultre. An unusual stainless steel cushion-shaped automatic prototype calendar wristwatch with sweep centre seconds, hack feature and bracelet

SIGNED JAEGER-LECOULTRE, MOVEMENT NO. 2'206'753, MANUFACTURED IN 1974

Details
Jaeger-LeCoultre. An unusual stainless steel cushion-shaped automatic prototype calendar wristwatch with sweep centre seconds, hack feature and bracelet
Signed Jaeger-LeCoultre, movement no. 2'206'753, manufactured in 1974
Cal. 906 nickel-finished lever movement, 21 jewels, textured silvered dial, applied black enamelled baton numerals with luminous accents, luminous hands, sweep centre seconds, large window for day and date, cushion-shaped water-resistant-type case, screw back centred with Jaeger-LeCoultre logo and engraved Prototype Unsaleable Hors Vente Ausser Verkauf, stainless steel Jaeger LeCoultre bracelet, case, dial and movement signed
38 mm. wide & 43 mm. overall length

Condition report

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Lot Essay

According to the Archives of Jaeger-LeCoultre, the present watch was manufactured in 1974.

This watch is a prototype of one of Jaeger-LeCoultre's automatic watches featuring a calibre 906 movement. Most notable is the stop seconds or hack mechanism, made of green molded plastic blocking the balance wheel when the crown is pulled out.

The automatic calibre 906 with chronometer standards remained in production during a very short period of time. It was also supplied as an ébauche to Vacheron Constantin and used in the Chronomètre Royal series.

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