Pocket watch · Full hunter split second chronograph pocket watch

Henri Jacot, Locle 18K gold full hunter split second chronograph pocket watch

Partially verified

According to the auction catalog, this keyless wind full hunter pocket watch by Henri Jacot, Locle dates to circa 1890 and is crafted in 18K yellow gold with a split-second chronograph (rattrapante) complication. The white enamel dial is inscribed 'Henri Jacot Locle' beneath 12 o'clock, featuring black Roman numerals, blued steel hands with central sweep hands, an outer chronograph calibration scale, and a subsidiary seconds dial at the 6 o'clock position. The case shows fine reeded borders with a winding crown and suspension bow situated at 3 o'clock.

Dial and open front hunter case of the Henri Jacot 18K gold split-second chronograph pocket watch — Bonhams Cornette de Saint Cyr. Rights pending — permission not yet requested. Original source

Catalogue identity

Source: www.bonhams.com
Category: Pocket watch · Full hunter split second chronograph pocket watch
Maker / attribution: Henri Jacot, Locle
Reference: Not recorded
Catalogue / lot identifier: 3011
Source-reported date: Circa 1890
Country: Switzerland

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 Attribution

The auction title attributes this timepiece to maker Henri Jacot, Locle, describing it as an 18K yellow gold keyless wind full hunter pocket watch with a split-second chronograph complication (chronographe de poche à clapet avec fonction rattrapante remontoir au pendant). The catalog provides an approximate date of circa 1890, while caliber specifications and serial numbers are not stated in the source text.

In visual observation, the dial reflects this attribution, bearing the maker's signature inscribed in script below the 12 position. Any internal marks or hallmarking remain unconfirmed in the provided lot record.

Evidence for this section

“Henri Jacot, Locle. An 18K gold keyless wind full hunter split second chronograph pocket watch Henri Jacot, Locle. Chronographe de poche à clapet en or jaune 18K (750) avec fonction rattrapante remontoir au pendant Circa 1890”
“White dial signed 'Henri Jacot Locle' in cursive script below the 12 position”

Case Construction and Controls

The pocket watch is configured in a full hunter case reported as 18K gold (750). The hinged front hunter cover opens to the left, revealing a reeded or coin-edge bezel and band decoration.

Controls include a fluted onion winding crown and pendant loop positioned at the 3 o'clock orientation. The pendant area is flanked by visible case slides or pushers.

Evidence for this section

“Hinged front hunter cover open to the left revealing coin-edge or reeded bezel and band decoration”
“Fluted onion winding crown with pendant loop positioned at the 3 o'clock orientation, flanked by case slides/pushers”

Dial and Hands Layout

The dial is white with Roman numeral hour indices, an outer 0-240 track, and a subsidiary dial located at the 6 o'clock position.

Indications are provided by pierced poire-style hour and minute hands accompanied by two central chronograph sweep hands.

Evidence for this section

“Roman numeral hour indices, fine outer 0-240 track, and subsidiary dial at 6 o'clock”
“Two central chronograph sweep hands along with pierced poire-style hour and minute hands”

Open research questions

What movement caliber, ebauche, and jewel count are present inside the case?
What case serial numbers or Swiss gold hallmarks are struck on the cuvette and inner case covers?
How are the split-second chronograph start, stop, and split functions allocated between the pendant crown and case slides?

Source evidence

Recorded claims and source quotations for Henri Jacot, Locle 18K gold full hunter split second chronograph pocket watch
Field	Source-reported value	Source quotation
Maker	Henri Jacot, Locle	“Henri Jacot, Locle.”
Case Material	18K gold (750)	“or jaune 18K (750)”
Winding	Keyless wind	“keyless wind”
Case Style	Full hunter	“full hunter”
Complication	Split second chronograph (rattrapante)	“split second chronograph pocket watch Henri Jacot, Locle. Chronographe de poche à clapet en or jaune 18K (750) avec fonction rattrapante”
Date	Circa 1890	“Circa 1890”

Visible details

White dial signed 'Henri Jacot Locle' in cursive script below the 12 position
Roman numeral hour indices, fine outer 0-240 track, and subsidiary dial at 6 o'clock
Two central chronograph sweep hands along with pierced poire-style hour and minute hands
Hinged front hunter cover open to the left revealing coin-edge or reeded bezel and band decoration
Fluted onion winding crown with pendant loop positioned at the 3 o'clock orientation, flanked by case slides/pushers

Research qualifications

Internal movement and hallmarks are not illustrated in the auction photograph
Movement caliber, jewel count, and operating condition are unstated in the available lot text

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

Consulted source

Bonhams Cornette de Saint Cyr : Henri Jacot, Locle. An 18K gold keyless wind full hunter split second chronograph pocket watch Henri Jacot, Locle. Chronographe de poche à clapet en or jaune 18K (750) avec fonction rattrapante remontoir au pendant Circa 1890

Reviewed 2026-10-21 · Record 66876f4cd9

Terms in this record

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