Longines Hour Angle Ref. 989.5224 – Designed by Charles A. Lindbergh

The Longines Hour Angle 989.5224 is a faithful homage to one of the most important aviation watches in history, designed in collaboration with the legendary aviator Charles A. Lindbergh. First introduced in 1931 to aid in celestial navigation, the Hour Angle watch provided pilots with a reliable tool to calculate longitude during long-distance flights. This reissue preserves that pioneering spirit with refined craftsmanship and a smaller, wearable case size.

This model features a stainless steel case measuring 33mm, a size that enhances its vintage charm and makes it especially versatile for both men and women. The case is accented by a polished bezel and a gold-tone onion crown, evoking the classic pilot’s watch aesthetic of the 1930s. On the caseback, Longines proudly engraves the winged hourglass emblem along with the inscription: “Longines Hour Angle Watch – Designed by Col. Chas A. Lindbergh”. This engraving not only pays tribute to Lindbergh but also underlines the watch’s historical significance. 

The dial is an intricate, functional masterpiece designed for navigational calculations.

A champagne-toned base with Roman numerals for the hour track.

A rotating graduated outer scale for angle and longitude measurements.

A central small seconds sub-dial for precision timing.

Contrasting blue and black calibrations, ensuring clarity and easy legibility during use.

The design reflects its original purpose while offering vintage elegance for modern collectors.

At its heart, the watch is powered by the Longines Caliber L989.2, an automatic mechanical movement derived from the renowned 990 series. This caliber runs at 28,800 vibrations per hour with a power reserve of approximately 42 hours. Featuring 25 jewels, it delivers both accuracy and durability, embodying Longines’ long-standing technical expertise.