A. Lange and Sohne 308.027 Langematik Big Date Black Dial 18K White Gold (31440)

31440 A Lange & Sohne 308.027 Langematik Big Date 308027, 18k white gold on a strap with an 18k white gold tang buckle, automatic A. Lange caliber L921.4 SAX-O-MAT movement, black dial with white gold luminous hands, small seconds with zero reset at 6 o'clock, big date at 12 o'clock, diameter: 37mm, thickness: 9.7mm, display back, sapphire crystal, water resistant to 3o meters, 46-hours power reserve, Like New with Box and Papers; datec 10/2000.

$15,900

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More about A. Lange and Sohne 308.027 Langematik Big Date Black Dial 18K White Gold

This is an 18K white gold A. Lange & Sohne Langematik Big Date Sax-O-Mat 308.027. It has an alligator leather strap with a white gold ALS tang buckle, and a scratch resistant sapphire crystal. There is a screw-down winding crown with a zero-reset mechanism that causes the seconds hand to jump to the zero position for setting the exact time. A rectangular push bar on the case band at 10'clock adjusts the date. There is an exhibition sapphire display case back secured with 6 screws, and engraved around the perimeter with "A. LANGE & SOHNE – GLASHUTTE, SA," a serial number and hallmarks. The 37mm diameter three-body solid case, curved lugs, and angled bezel are polished. There is a black dial with applied white gold baton index markers around a perimeter minute scale, and white gold alpha hands with luminous inserts. There is a steel recessed circular running small seconds subsidiary dial at the 6 o'clock position, and a gold-rimmed double frame aperture window for the big date at 12 o'clock. It has a 46-hour power reserve at full wind, and it's water resistant to 30 meters/100 feet. The 9.7mm thick case, dial, and movement are all signed.

This A. Lange & Sohne Langematik Big Date Sax-O-Mat 308.027 has a mechanical automatic self-winding Lange caliber L921.4 movement. It has a Glashütte German silver ¾ plate, with hand engraved and fausses cotes embellishment. It's constructed with 45 jewels, blued screws, a shock absorber device, and a straight-line lever escapement. There is a monometallic balance that's adjusted to 5 positions, the patented Lange self-compensating flat balance spring, and a swan neck micrometer regulator. There is a 21K yellow gold micro-rotor with a platinum edge-weight.

The A. Lange & Sohne Langematik Big Date 308.027 was released in 2000.