GrailAtlasAn independent reference for mechanical watches

Watches 38–40mm

The most versatile size range in the catalog: wears well on most wrists, crosses sport-to-dress contexts, and represents the majority of modern dress references.

With 89 references, 38–40mm is the catalog's second-largest band and its most versatile. The Audemars Piguet Royal Oak Jumbo Extra-Thin (39mm), the Tudor Black Bay 58 (39mm), the Omega Speedmaster Reduced (39mm), and the A. Lange & Söhne Lange 1 and Datograph (38–39mm) occupy a size that crosses sport and dress contexts without committing to either.

39mm is the size most enthusiasts converge on when asked what wears well on every wrist without deliberate selection: short enough to clear a shirt cuff on medium wrists, large enough that no one reads it as a formal piece unless the design explicitly signals that. The Royal Oak Jumbo at 39mm is perhaps the clearest example of how a case at this size can carry genuine architectural presence despite the number. For buyers who wear their watch to both the office and the weekend, this band resolves the tension without compromise.

Filter further in Browse →Combine with country, size, complication, era, and more.

104 references in this case size

Filter further with other axes →

Watches 38–40mm | Grail Atlas