This Roskopf Patent wristwatch dates from the 1930’s and is a NOS (new old stock) example that has remained unused, with minor signs of long-term storage. It has a rectangular Art Deco case with subsidiary seconds and a sector-style dial bearing the Roskopf Patent emblem, together with blued hands with aged luminous material and a “rustless steel back” case, as engraved on the reverse. • Movement: Manual wind • Case width: 17 mm (without crown) • Lug-to-lug: 34 mm • Lug width: 12 mm • Case material: Chromed case with rustless steel back • Strap: Leather strap • Condition: NOS with small storage-related marks (see photos) it has never been opened