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The Encyclopedia of Horology

Pocket watch · Half hunter jump hour pocket watch

Cortebert gun metal keyless wind half hunter jump hour pocket watch

Partially verified

According to Bonhams, this pocket watch is a keyless wind half hunter jump hour model by Cortebert, dated to circa 1930 and housed in a gun metal case. The white enamel dial is signed 'Manufacture de Cortébert' in cursive script and decorated with floral garlands and light blue banding. Time is indicated digitally via an upper aperture for hours, a lower aperture for minutes, and a small subsidiary seconds dial at the bottom. The hinged front cover features two apertures corresponding to the digital displays.

Dial and open front half-hunter cover of the Cortebert jump hour pocket watch
Dial and open front half-hunter cover of the Cortebert jump hour pocket watch — Bonhams. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.bonhams.com
Category
Pocket watch · Half hunter jump hour pocket watch
Maker / attribution
Cortebert
Reference
Not recorded
Catalogue / lot identifier
29
Source-reported date
Circa 1930
Country
Not established

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

Identity and Configuration

In Bonhams Weekly: Watches sale, lot 29 is listed as a Cortebert keyless wind half hunter jump hour pocket watch. The catalog text dates the watch to circa 1930 and designates gun metal as the case material.

The piece utilizes a half hunter pocket watch configuration, featuring a hinged front cover with cutouts designed to expose the time displays when shut.

Evidence for this section
  • “Lot 29”
  • “Cortebert. A gun metal keyless wind half hunter jump hour pocket watch Circa 1930”

Case and Front Cover Construction

Observation of the piece reveals a dark gun metal case featuring a winding crown and bow situated at the 3 o'clock position relative to the hinge. The hinged front cover opens towards the left.

The front half hunter cover incorporates two dedicated viewing apertures corresponding to the digital displays beneath.

Evidence for this section
  • “Hinged half hunter cover opened to the left, showing two viewing apertures”
  • “Dark gun metal case with crown and bow located at the 3 o'clock position relative to the hinge”

Dial Design and Digital Display

The white enamel dial features a digital jump hour arrangement. Time is displayed through an upper aperture showing hour numerals and a lower aperture showing minute numerals, accompanied by a small subsidiary seconds dial situated below.

The dial is inscribed 'Manufacture de Cortébert' in cursive between the two display apertures and is decorated with light blue circular banding and polychrome floral swags.

Evidence for this section
  • “White enamel dial inscribed 'Manufacture de Cortébert' between the display windows”
  • “Upper aperture displaying hour numerals and lower aperture displaying minute numerals”
  • “Small subsidiary seconds dial situated below the minute aperture”
  • “Dial decorated with light blue circular banding and polychrome floral swags”

Documentation and Mechanism Limitations

The auction entry does not describe or illustrate the internal movement, leaving the caliber number, jewel count, escapement type, and mechanical preservation unrecorded in this source. The interior of the case is likewise not documented.

The circa 1930 dating is an approximate catalog attribution and is not corroborated by visible hallmarks or serial numbers in the available material.

Evidence for this section
  • “Circa 1930”

Open research questions

  • What specific Cortebert movement caliber powers the jump hour digital display mechanism?
  • Are there any serial numbers, hallmarks, or case maker stamps on the inside of the case back confirming the circa 1930 dating?

Source evidence

Recorded claims and source quotations for Cortebert gun metal keyless wind half hunter jump hour pocket watch
FieldSource-reported valueSource quotation
MakerCortebert“Cortebert. A gun metal keyless wind half hunter jump hour pocket watch”
Case MaterialGun metal“A gun metal keyless wind half hunter jump hour pocket watch”
Winding MechanismKeyless wind“keyless wind half hunter jump hour pocket watch”
DateCirca 1930“Circa 1930”
Auction Lot Number29“Lot 29”
Auction Sale NameWeekly: Watches“Weekly: Watches”

Visible details

  • Hinged half hunter cover opened to the left, showing two viewing apertures
  • White enamel dial inscribed 'Manufacture de Cortébert' between the display windows
  • Upper aperture displaying hour numerals and lower aperture displaying minute numerals
  • Small subsidiary seconds dial situated below the minute aperture
  • Dial decorated with light blue circular banding and polychrome floral swags
  • Dark gun metal case with crown and bow located at the 3 o'clock position relative to the hinge

Research qualifications

  • Movement caliber, jeweling, and case interior are not depicted or described in the auction text
  • Dating to circa 1930 is source-reported and not verified by visible serial hallmarks

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

Consulted source

Bonhams : Cortebert. A gun metal keyless wind half hunter jump hour pocket watch Circa 1930

Reviewed 2026-10-21 · Record e69f6ab7f4

Terms in this record

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