mm39

mm39 is an alphanumeric designation used in various industries to label models, components, or dimensions. Unlike a standardized term, it does not refer to a single specification or standard across fields. The combination “mm” commonly signals millimeters, suggesting a size or dimension, while “39” serves as a numeric variant identifier. In practice, mm39 may appear in product catalogs, packaging, or technical drawings as a model number, variant code, or item number.

Because the same code can be used by different manufacturers for different products, the precise meaning of mm39 depends on the context. In hardware or consumer electronics, it might indicate a 39 mm dimension or a variant in a line. In manufacturing databases, mm39 could be an internal part number or batch code. In collectibles or horology, a similar convention may indicate case size or module configuration; again, verification with the originating source is required.

If you encounter mm39, collect contextual clues such as the product type, the accompanying specifications, and the manufacturer. That information will help determine whether mm39 refers to a physical size (39 millimeters), a specific model variant, or an internal catalog code.

See also: alphanumeric product codes, millimeter-based sizing conventions, model numbers.