Square and Rectangular Watches: A Short Guide to Non-Round Cases

Most watches are round, which makes square and rectangular watches stand out. They have a long history and a distinctive look that suits many wrists.

The Cartier Tank, designed in 1917 and launched commercially in 1919, is the most famous rectangular watch. Its design was inspired by the lines of military tanks seen from above, and its clean, classical proportions have influenced watchmakers ever since.

The Jaeger-LeCoultre Reverso, introduced in 1931, was designed for polo players. Its case flips over to protect the crystal, and the back can be left plain or engraved. It remains a staple of the brand's collection.

Art Deco shaped the style in the 1920s and 1930s, and shaped watches such as tonneau, cushion and square cases became popular. Several modern brands have revived these forms, often with smaller, more wearable proportions.

Wearing a non-round watch is a matter of fit. A long rectangular case can overhang a small wrist, so check the lug-to-lug and thickness. A strap that matches the case lines and a dial that is easy to read will complete the look.

A square or rectangular watch is a good way to add variety to a collection of round pieces. They tend to be elegant and understated, and they usually suit formal occasions especially well.