Longines Lindbergh Hour Angle Ref 3210

Technical characteristics

Date

1938

Type

Aviation watch

Maker

Longines

Movement

18.69N

Reference

3210

Provenance

Casullo, Panama

Case Material

Stainless steel

Serial Number

200342

Place recorded

Switzerland

Maker / attribution

Longines

Design

Visible features

• Onion-style winding crown at 3 o'clock • Rotating outer bezel with black navigation graduations • Blue-toned Breguet-style hands • Red inner ring on the central rotating disc

Design and Dial Construction

The timepiece features a multi-layered dial designed for the calculation of latitude and longitude via the hour angle. The dial layout includes an outer white enamel ring displaying Roman numerals and blue Arabic numerals representing degrees. A central rotating disc, finished in light gray, includes a red graduated ring and is manipulated using the crown. The watch includes a rotating silver bezel marked with black graduations intended for navigation. The time is indicated by blue-toned Breguet-style hands. The watch is equipped with an onion-style crown for winding and a pusher located at the 4 o'clock position, which is utilized for setting the time.

Provenance and Documentation

The watch was officially invoiced on October 27, 1938, through the entity Casullo, which served as the Longines representative in Panama. The watch is accompanied by an 'Extract from the Archives' issued on March 3, 2026, verifying its production details and original sale. The case and its associated cuvette are engraved internally with the phrase 'Acier Staybrite' and the serial number 200342, which confirms the specific manufacturing batch. The watch is currently presented with an original brown NATO strap in poor condition and an additional non-original black NATO strap.

Movement and Mechanical Specifications

The watch is powered by a manual winding movement identified as Caliber 18.69N, which features 15 jewels. This caliber was first developed in 1908 and was frequently used in the pocket watches produced by the manufacturer. It operates at a frequency of 18,000 A/h and provides an approximate power reserve of 36 hours. The 18.69N caliber was employed for the first three generations of the Hour-angle series. This specific movement was produced with either nickel or gilt finishes, reflecting the manufacturer's production standards for aviation timepieces during this era.

Identification

Reference

3210

Serial number

200342

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.