Glossary · Case & Dial
Dust cover
Any inner cover, of metal or later of celluloid or plastic, protecting the movement from dust ingress.
Explanation
A dust cover (cuvette or dome) is an inner hinged or snap-on cover protecting a pocket watch movement under the outer case back. Many are engraved with the maker's name, presentation inscriptions or repairers' marks. Repairers' scratch marks inside covers record past services and can help date a watch's history; they should be left untouched.
In the object catalogue
Catalogued objects whose own source record mentions “Dust cover”. The quoted line shows where; it is the seller’s or museum’s wording, not independent verification.

Pocket watch
Cortébert Art Deco 14K Gold Slim Pocket Watch
“This open face pocket watch by Cortébert is dated by the seller to the 1930s and cased in Swiss-hallmarked 14K solid gold. Measuring 48 mm across excluding the crown, the timepi…”

Pocket watch
Lemania referee split-seconds pocket watch chronograph in red housing, cal. 1130
“This Lemania referee pocket watch features a split-seconds (rattrapante) chronograph mechanism, caliber 1130, housed inside an original red outer holder equipped with a neck str…”

Marine chronometer
John Poole Eight-Day Marine Chronometer No. 2975
“According to the auction catalog, this eight-day marine chronometer by John Poole features an Earnshaw-type detent escapement mounted on a subframe with a blued steel helical sp…”

Pocket watch
Lancashire Watch Co Ltd pocket watch
“This antique pocket watch is fitted with a stem-winding mechanical movement signed by Lancashire Watch Co Ltd, Prescot, England. According to the seller, the movement is housed …”

Pocket watch
Sir John Bennett Longines silver pocket watch, 1886
“This late Victorian silver pocket watch dates to 1886 according to London hallmarks recorded by the seller. The watch was retailed by London watchmaker Sir John Bennett and hous…”

Pocket watch
Antique Valjoux Chronograph Pocket Watch
“This open-face chronograph pocket watch dates to circa 1900–1920 according to the listing. The nickel case measures 52 mm in diameter excluding the winding stem and loop, and en…”