Case diameter

28 mm watches

On the small side by modern standards; sizes like this were the norm for mid-century watches. Lug-to-lug length and case thickness matter as much as diameter for how a watch fits.

Watchfari lists 225 references with a sourced case diameter of 28.0 to 28.99 mm, spread across 28 brands and 59 families. Sourced case diameters run from 28 mm to 28.9 mm. By movement type: 59 quartz, 20 automatic, and 1 solar. The most common sourced case material is stainless steel (81 of 137).