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A. Lange & Söhne

A. Lange & Söhne Zeitwerk 140.025

The A. Lange & Söhne Zeitwerk (reference 140.025) is a 41.9 mm platinum watch. It runs on the manual caliber L043.1 with a 36-hour power reserve. It was introduced in 2009.

Specifications

Case

Reference
140.025
Collection
Zeitwerk
Case size
41.9 mm
Thickness
12.6 mm
Case material
Platinum
Case shape
Round
Crystal
Sapphire
Bracelet / strap
Alligator leather strap

Movement

Movement
Manual
Caliber
L043.1
Power reserve
36 hours
Frequency
18,000 vph
Functions
Jumping hour, Digital minutes, Small seconds, Power reserve indicator

Production

Production
2009 – today (discontinued)

How it compares within the Zeitwerk family

Side by side with other references in the same collection, from the catalog.

ReferenceSizeMaterialDialCaliberYears
140.025 (This watch)41.9 mmPlatinum—L043.12009–
140.02141.9 mm18k yellow gold—L043.12009–
140.02941.9 mm18k white goldBlackL043.12009–2021
140.03241.9 mm18k pink goldSilverL043.12009–2021
142.02541.9 mmPlatinumSilverL043.62022–
142.03141.9 mm18k pink goldBlackL043.62022–
143.050—Honey goldSilver——
148.03344.2 mm18k pink goldGreyL043.82019–
148.03844.2 mm18k white gold—L043.82019–

About the Zeitwerk family

The Zeitwerk was introduced in 2009 as a mechanical watch with a digital display: hours and minutes jump on discs read through a large window. Moving the discs at once needs a lot of energy, so the caliber L043.1 uses a constant-force mechanism to keep the rate stable.

Later versions include the Zeitwerk Minute Repeater, which chimes the time in decimal fashion, and the Zeitwerk Date of 2021 with caliber L043.8. The catalog lists pink, white, yellow and honey gold and platinum references. Dealers check that the jumping display works crisply and ask for service history.

Quick answers

What size is the A. Lange & Söhne Zeitwerk 140.025?
The A. Lange & Söhne Zeitwerk 140.025 has a 41.9 mm case, 12.6 mm thick.
What movement does the A. Lange & Söhne Zeitwerk 140.025 use?
It uses the manual caliber L043.1, with a 36-hour power reserve.
Is the A. Lange & Söhne Zeitwerk 140.025 still in production?
Discontinued.
When did the A. Lange & Söhne Zeitwerk 140.025 come out?
It was introduced in 2009.
What is the A. Lange & Söhne Zeitwerk 140.025 made of?
The case is platinum. Bracelet or strap: Alligator leather strap.

Catalog facts checked September 2026.