Oris Pin-Lever Escapement Demonstration Model

Technical characteristics

Date

circa 1940-1950

Type

Horological demonstration model

Maker

Oris Watch Co.

Materials

Chromium-plated metal

Dimensions

165 x 160 x 120 mm

Case Number

179

Place recorded

Switzerland

Movement details

Pin-lever escapement, monometallic balance, flat hairspring

Maker / attribution

Oris Watch Co.

Additional components

Electrical socket with two male plugs

Design

Visible features

• Visible Oris branding on both sides of the movement plate • Presence of a jewel-set balance and lever bridge • Stop-balance lever positioned at the 12 o'clock marker • Included glass dome and wooden stand

Model Construction

This demonstration model is constructed from chromium-plated metal and is configured to display the specific mechanics of a pin-lever escapement. The escapement assembly is mounted to a plate that includes, as a primary feature, a monometallic balance wheel paired with a flat hairspring. To facilitate the instructional use of the model, a stop-balance device is integrated at the 12 o'clock position, allowing the user to immobilize the balance during observation of the escapement's geometry. The model is designed for continuous operation through an electric drive system. The connection for this power source is facilitated by an electrical socket located on the unit, which features two male plugs. The entire assembly sits on a wooden base and is protected by a glass dome, intended for permanent display or demonstration purposes within a retail or educational setting.

Signatures and Branding

The object features the Oris brand name as a central identifying mark. On the primary circular movement plate, the Oris name is displayed twice, once on each side of the central escapement bridge, presented within stylized shield logos. These shields are finished in a color-contrasting manner, emphasizing the branding for potential observers. An additional Oris label is mounted on the wooden base of the unit. This metal plaque features the brand name in clear, sans-serif lettering, providing a formal identification for the model while it is resting within its display dome.

Condition and Accessories

The auction description reports the condition of the case as 'Good' and the movement as 'Good'. The model is sold as a set, which includes an additional wooden base and a protective glass dome. The dome measures approximately 225 mm in diameter and stands about 250 mm in height.

Identification

Serial number

179

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.