Universal Geneve Aero-Compax 24h Ref.890101/01

The Universal Genève Aero-Compax Ref. 890101/01 stands as one of the most distinctive evolutions of the brand’s aviation chronographs. Introduced in the 1960s, this later iteration replaced the traditional dual time registers with a highly legible 24-hour dial, designed for precise time tracking during long-distance flights. The external 24-hour rotating bezel enhances its functionality, allowing the wearer to monitor an additional timezone with ease — a key feature for pilots and frequent travelers of the jet age.

Beneath the dial, Universal Genève opted for a modified Venus 178 movement rather than an in-house calibre, adapting it ingeniously to include both the 24-hour display and the rare 15-minute counter — a nod to the standard aircraft pre-flight check duration. This technical innovation demonstrates the brand’s deep understanding of professional aviation needs, merging mechanical ingenuity with practical purpose.

Measuring 41mm, the stainless-steel case provides a bold wrist presence, balanced by clean lines and excellent legibility. This particular example remains in exceptional condition, retaining its original factory stickers on the caseback — an extraordinary detail that confirms its near-new state and remarkable preservation. The Aero-Compax captures the essence of 1960s tool watches: purposeful, functional, and enduringly elegant, a true icon of Universal Genève’s golden era.