MINASE
MINASE is a Japanese watch brand developed by KYOWA, a manufacturer with precision-tool origins. Its own history describes a progression from cutting tools and step drills to watch-case production. Drilling tools also inform the brand logo.
Case finishing and polishing are central to its identity. The manufacturer emphasises Sallaz polishing and three-dimensional construction, presenting models including Divido, Five Windows and Seven Windows. Preserve model names when cataloguing, since different constructions cannot share a single set of dimensions.
On a pre-owned example, examine case surfaces, edges and transitions carefully. Record scratches, impacts and evidence of earlier polishing when assessing condition. Compare the same reference rather than any other MINASE watch. Case-manufacturing expertise alone does not establish internal manufacture of every movement component. Calibre, functions and water resistance need model-specific documentation.