Zenith Le Locle: The Manufacture

Most watchmaking "manufactures" are branding claims. A brand that designs movements, outsources components, and assembles in a rented facility may call itself a manufacture. Zenith's claim is different. The building at Rue des Billodes in Le Locle has been continuously operated as a watch manufacture since 1865 — the same year Georges Favre-Jacot founded the company. The building itself is part of the story.

The Site at Rue des Billodes

The manufacture's address — Rue des Billodes, Le Locle, Canton of Neuchâtel — is where Favre-Jacot built his first factory in 1865. The original brief was vertical integration: Favre-Jacot believed the Swiss établissage system, which distributed component production across specialised ateliers, produced unnecessary variation. By bringing everything under one roof — design, blanks, components, assembly, regulation — he could control quality at every stage.

The central building of the current complex dates to 1905 — a purpose-built factory in the architectural style of the Swiss Jura industrial tradition: large windows maximising natural light (electric lighting was not yet reliable for precision work), internal corridors connecting all workshops regardless of external conditions, and sufficient floor area to separate operations requiring different environments.

The complex grew through the 20th century as production expanded. At its early-century peak, the manufacture employed approximately 2,000 people . The current complex covers approximately 17,000 square metres across multiple connected buildings.

What "In-House" Means Here

The Rue des Billodes manufacture produces all Zenith movements. This encompasses:

• Movement design — all current calibres developed by Zenith engineers at Le Locle
• Component production — blanks, bridges, plates, and escapement components manufactured on-site
• Assembly and regulation — all calibres assembled and regulated at Le Locle
• Case production — cases and bracelets manufactured to Zenith specification (some components produced by external specialists to Zenith drawings)
• Quality control — COSC chronometer testing for qualifying movements

The distinction matters in the current market, where "movement" claims range from buying a Sellita SW200 from a supplier to genuine design-and-build. The El Primero's 56 years of documented development history — from the 1962 brief through every calibre variant — is not separable from the building in which it was developed.

The Attic — Charles Vermot's Cache

The building's most historically significant feature is not on the production floors. It is in the attic.

Around 1975 , when American management ordered the destruction of all El Primero tooling, Charles Vermot — head of the ébauches department — secretly moved more than a tonne of equipment to a walled-off section of the attic . He worked at night, without management's knowledge, over approximately six months. The cache included 150 stamping presses, cams, cutting tools, technical drawings, movement components, and dials. He sealed the section behind a false wall.

The cache was rediscovered in 1984 when new management searched the building. It was intact. Within that same year, Zenith began the supply relationship with Rolex that would see the El Primero base the Cosmograph Daytona ref. 16520 from 1988 to 2000.

The attic today: Zenith manufacture tours include the walled-off attic section. The presses have returned to the production floors, but the space is preserved as a record of what happened there. The false wall that concealed the cache, the physical dimensions of the storage area, and the context of the larger building — all are part of the tour. It is one of the few sites in Swiss watchmaking where a historically decisive event can be traced to a specific room.

LVMH Renovation — from 2011

When LVMH acquired Zenith in November 1999, the manufacture buildings were in the condition that a century-plus of industrial use produces: functional but not modern. Investment in renovation came under LVMH's Group structure.

From 2011 , the Le Locle complex underwent extensive renovation funded by LVMH. The scope included:

• Restoration of the historic building facades
• Modernisation of production floor layouts and equipment
• Installation of climate-controlled environments for movement assembly
• Upgrade of the visitor centre and public-facing spaces
• Preservation of the attic and historically significant areas

The renovation maintained the building's architectural character — the 1905 central building's exterior is unchanged — while upgrading the operational infrastructure. The result is a manufacture that functions at current standards while remaining demonstrably the same building that has been there since 1865.

Current Production Scale

The production volume — 20,000–25,000 watches annually — positions Zenith firmly in the luxury segment. For context: Rolex produces approximately 1 million watches per year; IWC approximately 150,000–200,000; Zenith's volume is below both. The scale reflects a brand that can produce all movements in-house without industrial scaling of the manufacture, and maintain quality control that would be difficult at higher volume.

Three movement families cover the full catalogue:
- El Primero (Cal. 3600 and variants) — Chronomaster collection
- El Primero 9004 — Defy El Primero 21 and Defy Extreme
- Elite (Cal. 670, 679, 6150) — Elite collection, Defy Classic, entry Pilot

Visiting the Manufacture

Zenith offers manufacture tours at Le Locle. The tour typically covers:
- The production floors (movement assembly, regulation, quality control)
- The attic and Charles Vermot's storage area
- The historical archive (including period movements and vintage references)
- The visitor centre and boutique

Tours require advance booking. The schedule and availability are managed by Zenith's Le Locle team. The attic visit is the most consistently requested element — and the one that connects the physical building to the brand's most important historical narrative.

Frequently Asked Questions

Where is the Zenith manufacture?
Rue des Billodes, Le Locle, Canton of Neuchâtel, Switzerland. The site has been operated as a watch manufacture since Georges Favre-Jacot founded the company there in 1865. The central building dates to 1905.

How large is the Le Locle manufacture?
Approximately 17,000 square metres across multiple connected buildings. Around 250 employees and approximately 20,000–25,000 watches produced annually.

Can visitors see the attic where Vermot hid the El Primero tooling?
Yes. Manufacture tours include the attic section where Charles Vermot hid more than a tonne of El Primero tooling circa 1975. The space is preserved as part of the manufacture's history, though the tooling has returned to production floors.

When did LVMH renovate the Le Locle manufacture?
From 2011, following the 1999 acquisition. LVMH funded extensive renovation of both historic facades and production infrastructure, while preserving the building's architectural character and historically significant areas including the attic.

Does Zenith produce all movements in-house?
Yes. All current Zenith movements — El Primero, El Primero 9004, and Elite calibres — are designed, produced, assembled, and regulated at Le Locle. This includes component manufacturing from blanks, not merely assembly from outsourced parts.

Related Articles

• Zenith: The Le Locle Manufacture
• Zenith and the Quartz Crisis: Charles Vermot's Attic
• Zenith El Primero: The Automatic Chronograph
• Zenith Chronomaster: The El Primero Collection
• Zenith Elite: The Movement Family