A. Lange & Söhne Langematik Big Date

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File:A Lange & Söhne Langematik Großdatum.jpg
A. Lange & Söhne Langematik Big Date, Ref. 308.021
File:Lange L921.4.jpg
Calibre L921.4
File:A Lange & Söhne Langematik Großdatum Platin.jpg
A. Lange & Söhne Langematik Big Date (platinum), Ref. 308.025
File:A Lange & Söhne Langematik Großdatum Weißgold.jpg
A. Lange & Söhne Langematik Big Date (white gold), Ref. 308.027
File:A Lange & Söhne Langematik Großdatum Rotgold.jpg
A. Lange & Söhne Langematik Big Date (red gold), Ref. 308.031

The Langematik Big Date is a luxury watch by A. Lange & Söhne.

This watch complements the 1997 launched, long considered as classics Langematik with the Lange-typical patented big date. The watch is equipped with the self-winding manufacture movement L921.4. Also 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 watch is available in many variants: in yellow or red gold, or in platinum as well as with various dial colors.

Reference:

308.021 (yellow gold), 358.021 (yellow gold, bracelet aus yellow gold), 308.025 (platinum), 358.025 (platinum, bracelet aus Platin), 308.027 (white gold, black dial), 358.027 (white gold, bracelet in white gold), 308.032 (red gold)

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 or platinum
Ø 37 mm, height 9.7 mm
Sapphire crystal
Screwed down caseback with six screws and with sapphire crystal

Dial:

Dial in solid silver champagn/black/rhodinated, applied indexes in gold
Lancet hands aus yellow gold/white gold, rhodinated, with Tritium covering

Functions:

Hours, minutes, small seconds at the 6
Hacking seconds device with automatic zeroing of 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
Versions with Ref. 358...: handmade bracelet in 18ct yellow gold/white gold/platinum

Price:

From 15.952,- € RRP (retrieved 2007)