Universal introduced its famous "Compax" chronograph family in 1935, the world's first chronograph wristwatch made in series with minute and hour registers. Universal successfully modernized its chronograph production over the next 40 years, and introduced a number of variants with specific additional functions pending the markets needs (pilots, doctors, engineers, etc.)

This Aero-Compax was available with either 24-hour or 12-hour dials, the latter being rarer. Whereas the 24-hour watches were fitted with calibre UG90 (based on Venus 178), the 12-hour watches are equipped with Universal's calibre 130 based on the Valjoux 726.

With its captivating two-tone dial, but also its superb ability to be worn daily, the present Aero-Compax has the right looks for a 1960s chronograph, paired with a very high degree of rarity.