Pair-case watch
Thomas Tompion|Nathanial Delander
1685–86 · Outer case: red tortoiseshell with silver inlay; Inner case and champlevé dial: silver · European Sculpture and Decorative Arts

Tompion, who was the first to number his watches, began to do so about 1682. The numbers referred to entries in his business ledgers and allowed him to keep track of the various components of a given watch. Unfortunately, none of his ledgers survives.
- Artist
- Thomas Tompion|Nathanial Delander
- Date
- 1685–86
- Medium
- Outer case: red tortoiseshell with silver inlay; Inner case and champlevé dial: silver
- Culture
- British, London
- Department
- European Sculpture and Decorative Arts
- Credit line
- Gift of J. Pierpont Morgan, 1917











