Glossary · Case & Dial
Engine turning (guilloché)
A mechanically engraved decorative pattern cut into a case or dial using a rose engine or straight-line lathe.
Explanation
Engine turning (guilloché) is the engraving of fine repetitive patterns — barley corn, sunburst, waves — into dials and cases using a rose engine or straight-line engine. Genuine engine turning is cut into the metal; stamped or printed imitation is common on later and cheaper pieces. Hand engine turning is now a rare craft practised by few workshops.
In the object catalogue
Catalogued objects whose own source record mentions “Engine turning (guilloché)”. The quoted line shows where; it is the seller’s or museum’s wording, not independent verification.
Clock
Benjamin Lewis Vulliamy Fusee Mantel Clock, No. 1874
“Circular silver dial featuring engine turning at the centre, Roman hour numerals, and an outer dotted minute track”
Pocket watch
Albert H. Potter & Co., Geneva Gold Hunting Cased Keyless Pocket Chronometer No. 85
“Open hunting-case front cover showing a polished inner bezel and the edge of engine turning on the outer face.”
Pocket watch
Waltham 14K Yellow Gold Box-Hinge Pocket Watch
“This American pocket watch by the American Waltham Watch Company dates to circa 1887 and features a 14K yellow gold box-hinge hunter case. The source notes the exterior is decor…”
Pocket watch
Continental silver verge fusee mock pendulum pocket watch
“Silver dial plate decorated with engine turning and bright-cut engraving”
Pocket watch
Lepaute et Fils à Paris 18K gold pocket watch with stop feature, No. 3433 + 36
“This circa 1830 French pocket watch by Lepaute et Fils à Paris features a 52 mm four-body 18K gold case in 'bassine et filets' form, decorated with engine turning along the back…”
Pocket watch
Skeletonised verge fusee pocket watch c1770
“This antique open-face verge fusee pocket watch is dated circa 1770 and attributed to Wm Retlaw in London. Housed in a gilt case with engine turning, it features a skeletonised …”