This Longines pocket-watch conversion carries a Caliber 19.74N movement dated circa 1908, fitted into a modern stainless steel wrist case with an exhibition back. The original fired enamel dial, with red 24‑hour markers and period Louis XVI style hands, remains the visual centrepiece. Mechanically, the manually wound 19.74N reflects Longines’ early 20th‑century chronometric practice, and the visible serial number documents its provenance. As a wearable translation of pocket-watch engineering, it offers collectors a tangible link to turn‑of‑the‑century watchmaking in a contemporary format.