This article from Time & Tide Watches explains the most common materials used in watch cases.
Steel is the Most Common Material: Most watches are made of steel, often the standard 316L (stainless steel) or a more advanced type like 904L. Steel is popular because it is strong, resistant to corrosion, and easy to work with.
No Single "Best" Material: There is no single best material (such as gold, aluminum, or tantalum). The ideal choice depends on many factors important to both the manufacturer and the buyer.
Goal: The article provides a breakdown of common materials to help buyers make the most informed decision.
