A. Lange & Söhne Pour le Mérite Tourbillon

Technical characteristics

Type

Tourbillon wristwatch

Maker

A. Lange & Söhne

Model

Tourbillon Pour le Mérite

Movement

Caliber L 902.0

Reference

701.005

Dimensions

38 mm diameter, 10.5 mm thickness

Case Number

110427

Complication

Chain and fusée power equalization

Place recorded

Germany

Limited Edition

No. 27 of 50

Maker / attribution

A. Lange & Söhne

Design

Case and Dial

The watch is housed in a three-body platinum case with a polished and brushed finish. Measuring 38 mm in diameter and 10.5 mm in thickness, the case is fitted with sapphire crystals and includes a transparent case back secured by six screws, allowing visual access to the movement. The lugs are integrated into the case structure, supporting a black leather strap. The dial is crafted from solid satiné silver and features painted Arabic numerals. It includes two sunken, guilloché-patterned subsidiary dials: one for the running seconds and one for the 36-hour power reserve indication. At the 6 o'clock position, an aperture is cut into the dial, displaying the tourbillon cage, which is framed by a polished steel bridge. The time is indicated by blued steel alpha-shaped hands.

Visible features

• Satiné silver dial with painted Arabic numerals • Polished steel tourbillon bridge visible at the 6 o'clock position • Transparent case back held by six screws • Black leather strap with buckle

Movement and Escapement

The movement is hand-decorated with fausses-côtes finishing and features 29 jewels, five of which are set in gold chatons. The one-minute tourbillon regulator is integrated with a lateral lever escapement and features a three-arm polished steel carriage. The movement incorporates a chain and fusée mechanism for power equalization, coupled with stepped planetary gearing to ensure consistent force. The balance wheel is a Glucydur screw-balance adjusted to five positions, paired with a Nivarox balance-spring featuring a Strasser overcoil. The tourbillon cage itself is equipped with two diamond endstones to reduce friction.

Condition and Attribution

The watch is recorded as having been manufactured in 1996 and is identified as number 27 of a limited run of 50 pieces. The dial, case, and movement all bear the manufacturer's signatures. Regarding the physical state of the object, the auction description reports the case condition as 'Very good' (grade 2) and the movement condition as 'Very good' (grade 2). The dial is described as being in 'As new' condition (grade 1-01), and the hands are confirmed as original to the timepiece.

Identification

Reference

701.005

Serial number

110427

Source note

Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.