Case diameter

19 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 34 references with a sourced case diameter of 19.0 to 19.99 mm, spread across 7 brands and 12 families. Every sourced case diameter here is 19 mm. By movement type: 1 automatic and 1 quartz. The most common sourced case material is stainless steel (11 of 26).