SÖNER's Library of Inspiration

Is Sapphire Glass Good for Watches? The Complete Guid

Quick answer: Yes. Sapphire crystal is the most scratch-resistant watch glass available, second only to diamond on the Mohs hardness scale. A watch with sapphire crystal maintains optica...

Understanding Vickers Hardness in Watch Steel

Vickers hardness (HV) is the standard measure of steel hardness used in watchmaking. It determines how resistant a watch case is to scratching and surface deformation under daily wear. Understand...

Watch Case Steel Guide: 316L, Surgical & Hardened

Steel is the most common watch case material in the world, but not all steel is equal. The difference between a standard stainless steel case and a high-grade hardened steel case is significant in ...

The Allure of Luxury Square Watches: A Complete Buyer's Guide

A luxury square watch is one of the most considered purchases in watchmaking. The format is rarer than round, the engineering is more demanding, and the design history behind the best examples runs...

Why Are Rolex Watches So Significant? The Complete Guide (2026)

No watch brand in the world carries more cultural weight than Rolex. The name alone communicates something before anyone has seen the watch on the wrist. Understanding why - what Rolex actually rep...

Rectangular Rolex Watches: Cellini Collection Guide

Quick Answer: Did Rolex make rectangular watches? Yes. Rolex produced several rectangular watch models throughout the 20th century, most notably under the Cellini name. The Cellini Prince is the m...