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The Encyclopedia of Horology

Pocket watch · Hunter minute repeating pocket watch

Louis Brandt & Fils minute repeating hunting case pocket watch with chronograph, calendar, and moon phase

Partially verified

This hunting case pocket watch is attributed by the source to Louis Brandt & Fils and dated to circa 1910 from Switzerland. It features a 57 mm smooth 14K rose gold case bearing the punch mark 'LBF'. The open view displays a white enamel dial with Arabic numerals, an outer chronograph track, a date subdial at 12 o'clock, apertures flanking the center arbor indicating the day ('MAR') and month ('JAN') in French, and constant seconds combined with a moon phase display at 6 o'clock. The source reports a bridge movement equipped with two hammers and two gongs, a lever escapement, and a screw balance.

Front view of the open hunting case pocket watch showing dial, calendar windows, and moon phase aperture
Front view of the open hunting case pocket watch showing dial, calendar windows, and moon phase aperture — Auktionen Dr. Crott. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.invaluable.com
Category
Pocket watch · Hunter minute repeating pocket watch
Maker / attribution
Louis Brandt & Fils
Reference
Not recorded
Catalogue / lot identifier
399
Source-reported date
circa 1910
Country
Switzerland
Source-reported serial
43691

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case Construction

The watch is housed in a 57 mm smooth hunting case made of 14K rose gold. The case bears the maker's punch mark "LBF". External features include an integrated pusher adjacent to the crown and a slide mechanism near the 6 o'clock position.

The source identifies the movement as having a glazed cover. The overall condition of the case is reported as very good. Not recorded in this source are the specific visual details of the inner glazed cover or the outer case back.

Evidence for this section
  • “14 K rose gold, smooth, case maker's punch mark "LBF", glazed movement.”
  • “Dimensions 57 mm”
  • “Case: very good.”
  • “Integrated pusher adjacent to the crown at the case band and slide near 6 o'clock.”

Dial and Calendar Display

The timepiece features a white enamel dial with black Arabic numerals and gold-tone hands. It includes a date subdial at the 12 o'clock position and a combined subsidiary seconds and moon phase aperture at the 6 o'clock position.

Calendar information is shown through two rectangular apertures flanking the center arbor, displaying the day and month in French (specifically 'MAR' and 'JAN'). The auction condition report indicates the dial is in good condition with a noted hairline crack.

Evidence for this section
  • “Dial: Enamel, date at "12", window for day and month in French, moon phase.”
  • “Dial: good, hairline.”
  • “Dual rectangular calendar apertures flanking the center arbor displaying 'MAR' and 'JAN' in French.”

Movement and Mechanism

The watch is driven by a bridge movement featuring two hammers and two gongs. The mechanical regulation is provided by a lever escapement and a screw balance.

The movement is reported by the auction house to be in very good, functional condition, with a recommendation for cleaning.

Evidence for this section
  • “Movm.: Bridge movement, 2 hammers / 2 gongs, lever escapement, screw balance.”
  • “Movm.: very good, capable of running, cleaning recommended.”

Open research questions

  • What is the identity of the maker associated with the 'LBF' punch mark?
  • Can the caliber of the bridge movement be identified through archives of Louis Brandt & Fils/Omega models from the early 20th century?
  • Does the serial number 43691 align with production records for Louis Brandt & Fils circa 1910?

Source evidence

Recorded claims and source quotations for Louis Brandt & Fils minute repeating hunting case pocket watch with chronograph, calendar, and moon phase
FieldSource-reported valueSource quotation
Case Number43691“Case No. 43691”
Case Material14 K rose gold“14 K rose gold, smooth”
Case Maker's MarkLBF“case maker's punch mark "LBF"”
Diameter57 mm“Dimensions 57 mm”
Weight134 g“Weight 134 g”
Movement MechanismBridge movement, 2 hammers / 2 gongs, lever escapement, screw balance“Bridge movement, 2 hammers / 2 gongs, lever escapement, screw balance.”
Dial FeaturesEnamel, date at "12", window for day and month in French, moon phase“Enamel, date at "12", window for day and month in French, moon phase.”
Total Weight134 g“Weight 134 g”
Approximate Datingcirca 1910“circa 1910”

Visible details

  • Front cover opened to display a white enamel dial with black Arabic numerals and gold-tone hands.
  • Dual rectangular calendar apertures flanking the center arbor displaying 'MAR' and 'JAN' in French.
  • Date subdial located at the 12 o'clock position and subsidiary seconds with moon phase aperture at 6 o'clock.
  • Integrated pusher adjacent to the crown at the case band and slide near 6 o'clock.

Research qualifications

  • The glazed inner movement and outer case back are not shown in the provided photograph.
  • The auction condition report lists a hairline crack on the dial, which is source-reported.

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

At Auction: Louis Brandt & Fils - Omega

Reviewed 2026-10-25 · Record 0c4ec35bf3

Terms in this record

Glossary explanations for terms named in this object’s record.