Title: Calendar key for a watch
Object type: Watch calendar key
Date: ca. 1800
Artist: Watchmaker: Etienne Tavernier 
Artist bio: French, 1756–1839
Artist nationality: French
Artist role: Maker
Medium: Gold and enamel
Dimensions: Overall: 1 5/8 × 15/16 × 5/16 in. (4.1 × 2.4 × 0.8 cm)
Classification: Horology
Credit line: Gift of Mrs. Lydia B. Powell, 1953
Department: European Sculpture and Decorative Arts
Repository: Metropolitan Museum of Art, New York, NY