Case material
Gold tone watches
Solid gold, usually 18k (75% gold), alloyed with other metals that set its colour. Heavier and softer than steel, so it marks more easily.
Watchfari lists 20 references with a sourced gold tone case, spread across 1 brand and 1 family. Sourced case diameters run from 21 mm to 45 mm. Every sourced movement here is quartz.
20 references1 brand