Glossary · Mechanism
Winding stem
The shaft connecting the crown to the keyless works, transmitting winding and hand-setting motion into the movement.
Explanation
The winding stem is the shaft connecting the crown to the keyless work. Turning it winds the mainspring; pulling it out moves it to the hand-setting position. Stems are specific to a calibre and case, and replacement stems must be the correct pattern and cut to the correct length so the crown seats properly.
In the object catalogue
Catalogued objects whose own source record mentions “Winding stem”. The quoted line shows where; it is the seller’s or museum’s wording, not independent verification.

Pocket watch
LeCoultre & Cie Antique Diamond and Enamel Pocket Watch
“Yellow gold winding stem with a ribbed, fluted crown and visible hinge elements”

Pocket watch
A 1920s silver Stauffer Son & Co pocket watch
“This open-face pocket watch features a movement attributed by the seller to the Stauffer, Son & Co. Atlas factory in La Chaux-de-Fonds, bearing the SS&Co mark under three triang…”

Movement
Manistee Watch Company 16-size movement, serial 0028148
“Movement shown mounted in an open watch case frame with pendant winding stem.”

Movement
Eska Watch Movement and Case
“This lot features a vintage Eska watch movement catalogued alongside a stainless steel case measuring 34 mm in diameter. The photograph depicts a manual-wind chronograph movemen…”

Pocket watch
Helvetia 9ct gold half-hunter pocket watch
“This lot features a half-hunter pocket watch attributed by the source to Helvetia, described in the listing title as made of 9ct gold. Visible in the photograph is an open yello…”

Pocket watch
Antique Doxa Pocket Watch, c1910
“Dating to circa 1910 according to the dealer, this antique open-face pocket watch by Doxa measures 53 mm in diameter excluding the winding stem and loop. The piece features an A…”