Case material

Yellow gold 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 565 references with a sourced yellow gold case, spread across 41 brands and 161 families. Sourced case diameters run from 14.3 mm to 56.5 mm. By movement type: 110 automatic, 97 quartz, 25 solar, and 15 manual.