Case diameter

55 mm watches

A very large diameter, typical of dive, pilot and chronograph designs. Lug-to-lug length and case thickness matter as much as diameter for how a watch fits.

Watchfari lists 2 references with a sourced case diameter of 55.0 to 55.99 mm, spread across 1 brand and 1 family. Every sourced case diameter here is 55 mm. Every sourced movement here is manual.