A. Lange & Söhne Grand Langematik

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A. Lange & Söhne Grand Langematik, Ref. 309.021

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Calibre L921.4

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A. Lange & Söhne Grand Langematik (red gold), Ref. 309.025

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A. Lange & Söhne Grand Langematik (platinum), Ref. 309.031

Große Langematik (Grand Langematik) is a luxury watch by A. Lange & Söhne.

History

This watch complements the 1997 lauched Langematik, long considered a classic, with the Lange-typical patented big date. It has a 40 mm diameter case, larger than the Langematik. Both are equipped with the self-winding manufacture movement L921.4. This "Sax-O-Mat" calibre has hacking seconds with automatic zeroing of the seconds hand ("zero-reset") when pulling the crown. The power reserve is 46 hours.

The Grand Langematik was introduced in 2003 and produced through 2007. References include the yellow gold/champagne 309.021, pink gold/black 309.031, and platinum/rhodium 309.025.

Reference: 309.021 (yellow gold), 309.025 (platinum), 309.031 (red gold, black dial) Movement: Self-winding movement L921.4 «SAX-O-MAT», 21,600 A/h 45 jewels Glucydur screwed balance, Nivarox hairspring with swan-neck precision regulator Beat adjustment with micrometer screw Bi-directional winding embossed «Three quarter rotor» in 21ct gold and platinum with 4 ball bearings in the gear change Power reserve 46 hours Bridges with Glashütte ribbing Case: 18ct yellow gold/white gold/platinum Ø 40 mm, height 9.7 mm Sapphire crystal Screwed down caseback with six screws and with sapphire crystal Dial: Dial in solid silver champagne colored/black applied indexes in gold Lancet hands in yellow gold/white gold, rhodinated, with tritium coverage Functions: Hours, minutes, small seconds at the 6 Hacking seconds device with automatic zeroing the seconds hand ("zero reset") when pulling the crown Corrector for date display on the side of the case Bracelet: Crocodile leather strap with tang-type buckle Price: From 19.400.- € RRP (2007)