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A. Lange & Söhne Zeitwerk 18kt White Gold with Black Rhodium Dial 41.9mm 140.029

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Condition: Unworn Original box Original papers
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Expected delivery: Jun 4, 2022 - Jun 13, 2022
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Details

Basic Info
Listing code 7ZBK14
Brand A. Lange & Söhne
Model Zeitwerk
Reference number 140.029
Movement Manual winding
Case material White gold
Year of production Unknown
Condition Unworn (Mint condition, without signs of wear)
Scope of delivery
Original box, original papers
Gender Men's watch/Unisex
Location United States of America, New York, New York

Caliber
Movement Manual winding
Movement/Caliber L043.1
Power reserve 36 h
Number of jewels 68

Case
Case material White gold
Case diameter 41.9 mm
Water resistance 3 ATM
Bezel material White gold
Crystal Sapphire crystal
Dial Black
Dial numerals Arabic numerals

Bracelet/strap
Bracelet color Black
Clasp Buckle
Clasp material White Gold

Other
Small seconds, Power Reserve Display

Description
A. Lange & Söhne Zeitwerk 18kt White Gold with Black Rhodium Dial Crafted from Solid Silver and the Time Bridge from Rhodiumed German Silver, Featuring Jumping Hour & Minutes in a digital display of Arabic Numerals and the perfectly engineered free-sprung balance spring crafted in-house by A. Lange & Söhne for their 260th Anniversary. Fitted on a Black Cocodile Leather Strap with a White Gold Tongue Buckle. - A true revolution in time telling! While most watches tell time using rotating hands to indicate the minute & hours, this watch actually displays the time via a mechanically operated fully digital numeric readout. Jump hours & mechanical digital watches are not new, they have been around for decades. however what Lange & Sohne has developed is the first digital-readout display watch that has the hours & minutes apertures lined up horizontally, in a natural reading format. In addition, the hours & minute numbers are displayed in a large format making for an extremely legible & easy read. Lange Caliber L043.1, beats at 18,000 vph, contains 66 jewels with an approximate power reserve of 36 hours. Other movement features: Patented Mainspring Barrel: A relatively enormous amount of energy is required to both power the movement & simultaneously advance the three disc's every hour. Thus the necessity for a more powerful mainspring. The mainspring sits in a barrel which in turn rotates the opposite way as as the mainspring relaxes, thus keeping a higher level of energy transferring to the movement. Manual Winding requires a little more effort, as you are winding both the mainspring & the barrel at the same time.

Patented Constant-Force Escapement provides 2 major innovations:
1) Provides a switching step for the instantaneous jumps of the minutes & hours with a drop warning, this governs the sudden burst of energy provided to advance the discs. To absorb the excess forces that occur during the sudden advancing and stopping process, the excess energy is dissipated via a fly governor.
2) Most escapements deliver the highest level of torque whilst the mainspring is fully wound, yet as the mainspring relaxes the torque weakens. This Escapement delivers a near constant level of torque to the balance across the entire 36 hour period and thus enhances the rate stability of the movement.

A NEW EPOCH IN MECHANICAL TIME MEASUREMENT.

A true revolution in time telling! While most watches tell time using rotating hands to indicate the minute & hours, this watch actually displays the time via a mechanically operated fully digital numeric readout. Jump hours & mechanical digital watches are not something new, they have been around for decades. however what Lange & Sohne has developed is the first digital-readout display watch that has the hours & minutes apertures lined up horizontally, in a natural reading format. In addition the hours & minute numbers are displayed in a large format making for an extremely legible & easy read.

This watch features:

- 18kt White Gold case.
- Black Rhodium dial.
- Jumping Hour &;Minutes in a digital display of Arabic Numerals.
- Hour & Minute windows are visible via two beveled /tapered windows. The tapered edges on the window frame eliminates any shadows, allowing for a clean & legible view of the current time.
- Small seconds sub-dial on the bottom of the dial.
- Power Reserve (Up/Down) Indicator located at the top of the dial bringing symmetry & balance to the dial.
- Polished White Gold hands for both the seconds & power reserve indicators.
- Brushed finished bridge of untreated German Silver is visible through the dial. the bridge encompasses all time-related features of the watch (hours, minutes & seconds). The bridge is actually part of the movement & by the lowering the dial to surround the bridge reduces the overall case thickness.
- Visible on the bridge is a large screw which is used to attach the bridge to the mainplate & to the right of that is the sapphire jewel endstone.
- Lange Caliber L043.1, beats at 18,000 vph, contains 66 jewels with an approximate power reserve of 36 hours.

Other movement features:

* Patented Mainspring Barrel: A relatively enormous amount of energy is required to both power the movement & simultaneously advance the three disc's every hour. Thus the necessity for a more powerful mainspring. The mainspring sits in a barrel which in turn rotates the opposite way as as the mainspring relaxes, thus keeping a higher level of energy transferring to the movement. Manual Winding requires a little more effort, as you are winding both the mainspring & the barrel at the same time.

* Patented Constant-Force Escapement provides 2 major innovations:

1. Provides a switching step for the instantaneous jumps of the minutes & hours with a drop warning, this governs the sudden burst of energy provided to advance the discs. To absorb the excess forces that occur during the sudden advancing and stopping process, the excess energy is dissipated via a fly governor.

2. Most escapements deliver the highest level of torque whilst the mainspring is fully wound, yet as the mainspring relaxes the torque weakens. This Escapement delivers a near constant level of torque to the balance across the entire 36 hour period and thus enhances the rate stability of the movement.

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