Pair-case quarter-repeating watch

John Champion · ca. 1770–72 · Outer case: glass and gold set with diamonds, pearls, emeralds, and rubies; Inner case: gold; Dial: white enamel with black painted Chinese characters and blued steel hands; Movement: gilded brass and partly blued steel

From the collection of The Metropolitan Museum of Art. Free to download, adapt and use — no permission needed.