A. Lange and Sohne Datograph LUMEN Up / Down 435.034 Platinum RARE

More about Datograph LUMEN Up / Down 435.034 Platinum RARE

This is a 950 Platinum A. Lange & Sohne Datograph Up/Down Lumen 405.034. It has an alligator strap with a platinum tang buckle, and a scratch resistant anti-reflective sapphire crystal. The exhibition sapphire case back is secured with 6 screws, and there is a platinum fluted winding crown. The 41mm diameter solid case, curved lugs, and flat bezel are polished, and it has rectangular chronometer push-buttons. The dial is created from semi-transparent coated black crystal. It has white gold sword hands with luminous inserts, applied faceted white gold diamond-shaped hour markers, and a large white central seconds hand. The minute hand of the chronograph jumps in 1-minute increments rather than moving continuously, allowing for a more accurate measuring of the Flyback/Timing function. The Flyback complication instantly restarts the chronograph with a single push of the button – it isn't necessary to stop, reset, and restart the stop-watch. There is a large double window date display at 12 o'clock, with a rectangular quick correction button located on the case edge at the 10 o'clock position. There is a white printed minute, seconds, and fractions of a second chapter ring, and a perimeter Tachymeter ring. There is a small seconds sub dial at 8 o'clock, a 30-minute totalizer sub dial is at the 4 o'clock position, and a small Up-Down (AUF/AB) power reserve indicator is at 6 o'clock. It comes with the COSC Swiss Chronometer certification, it has a 60-hour power reserve, and it's water resistant to 30 meters/100 feet. The 13mm thick case, dial, and movement are all signed. This A. Lange & Sohne Datograph Up/Down Lumen 405.034 has a mechanical manually winding A. Lange & Sohne caliber L 951.6 movement that's rhodium plated with fausses cotes embellishment. It's constructed with 46 jewels, 451 components, a shock absorber mechanism, and a straight-line lever escapement. The mechanism oscillates at a frequency of 18,000 vph (3 Hz). The A. Lange & Sohne Datograph Up/Down Lumen 405.034 was issued in a limited edition of 200 total pieces.

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