Franck Muller Imperial Tourbillon Répétition Minutes Ref. 5850 RM T

Technical characteristics

Type

Minute-repeating tourbillon wristwatch

Maker

Franck Muller

Caliber

TRM 95

Condition

Slightly scratched case

Reference

5850 RM T

Case material

Platinum

Serial number

19

Place recorded

Switzerland

Maker / attribution

Franck Muller

Design

Case and Dial

The watch features a vertical tonneau-shaped platinum case, described as having a curvex profile. It is equipped with a sapphire-crystal case-back secured by four screws, which permits viewing of the internal movement components. On the left side of the case, a slide is integrated for the activation of the minute-repeater mechanism. The dial is rendered in silver with a guilloché or engine-turned finish. It features large, radial Arabic numerals. A dedicated sector for the power-reserve indication is positioned at 10 o'clock, while a subsidiary seconds indicator is integrated with the visible one-minute tourbillon regulator at the 6 o'clock position.

Visible features

• Silver guilloché dial with radial Arabic numerals • Visible one-minute tourbillon cage at 6 o'clock • Minute-repeater activation slide on the left side of the case • Movement visible through the sapphire-crystal case-back

Provenance and Condition

The documentation classifies this object under lot number 257. The auction description provides a grading system where the movement is listed as Grade 3, while the case is identified as Grade 3-8, described as "Good" but with the specific note of being "Slightly scratched". The dial condition is assigned a Grade 3-01, noted as "Good". The watch is accompanied by its original fitted box and a certificate of origin. The signature is noted as present on the dial, the case, and the movement, confirming the identification of the piece as a Franck Muller original.

Movement and Complications

The watch is powered by a manual-winding caliber designated as TRM 95. According to the provided specifications, this movement is adjusted to five positions and designated as "First Quality". The horological complexity of the movement includes a minute-repeater system utilizing two steel gongs, alongside the one-minute tourbillon regulator which is visible from the dial side. The mechanical design allows for the monitoring of the power reserve via a sector located on the dial. The movement is unsigned by number, though the case carries the number 19, consistent with the overall limited production nature of the reference as identified in the provided documentation.

Identification

Reference

5850 RM T

Serial number

19

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.