Pocket watch with chased classical scene

Gilded copper watch in a chased case, and a second case of tortoiseshell. The white-enamelled dial has Roman hour numerals and Arabic minute numerals. The movement plate with pierced balance cock with vine ornament is signed: John Drills, London 5360. On the separate copper case is a chased classical scene. Inside the tortoiseshell case are two loose watch-papers from Rudolf Bossert in Hoorn and Van den Hartog in Purmerend. The Rijksmuseum, Amsterdam, holds this object as BK-15001; its record gives material recorded as tortoise shell, copper (metal); technique gild; measurements diameter 4 cm. Description translated from the museum's Dutch catalogue text; details are those of this museum object, and how far it represents a wider type has not been independently verified.