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 348 references with a sourced case diameter of 28.0 to 28.99 mm, spread across 31 brands and 75 families. Sourced case diameters run from 28 mm to 28.9 mm. By movement type: 114 quartz, 26 automatic, and 4 solar. The most common sourced case material is stainless steel (142 of 221).