Watch with a Guilloché Case with Pearls

Description The case of this watch showcases a process called guilloché, where subtle but kaleidoscopic effects are created through mechanical means. Geometric shapes are carved into metal by engine turning. The resulting patterns of fine lines are covered with transparent enamel. When light hits them it creates oscillating optic effects. Here, five or six layers of translucent enamel have been fired successively over these engraved patterns to achieve a brillant blue.

Provenance Anatole Demidoff [1812-1870], Prince of San Donato. Tiffany and Co., New York, prior to 1893 [1]. Acquired by Henry Walters, Baltimore; by bequest to Walters Art Museum, 1931. [1] on 1893 list, no. 20

Inscriptions [Signature] On movement: Adamson à Paris

Credit Acquired by Henry Walters