積家, "Prototype"，機蕊號 2206226，錶殼號 1069，Cal. 906，38 x 42 mm，約 1970
極罕見的男仕自動腕錶，附中心秒針，秒針停止功能，日期及星期顯示 - Prototype -，另附錶盒
Jaeger-LeCoultre "Prototype", Movement No. 2206226, Case No. 1069, Cal. 906, 38 x 42 mm, circa 1970
A gentleman's extremely rare automatic wristwatch with centre seconds, hack feature and day and date indicator - prototype - with box
Case: steel, screw back with centred Jaeger-LeCoultre logo and engraving: "Prototype - Unsaleable-Hors Vente-Ausser Verkauf", original leather bracelet and original steel buckle. Dial: dark blue, textured, applied luminous indexes, signed, window for day and date, luminous baton hands. Movm.: rotorwind movement, rhodium-plated, ground, 6 adj, 21 jewels, signed, hack feature, Glucydur balance, incabloc shock protection for balance.
The watch is a prototype of Jaeger-LeCoultre automatic watches fitted with a calibre 906 movement. What stands out here is the hacking mechanism made of green molded plastic, which stops the balance wheel when the crown is pulled out.
The automatic calibre 906 with chronometer standards was produced for a very short time only; Vacheron Constantin ordered it as an ébauche and used it for their Chronomètre Royal models.
机蕊 非常好, 走動正常
机蕊 非常好, 走動正常