Watch Crown & Push Pieces
The Watch Crown is a necessary, integral part of a timepiece that allows you to adjust both the time and date on the dial. The crown is also the mechanism on mechanical for the winding of the movement and keeping the timepiece running optimally.
Often called the stem, a crown is usually positioned on the right side of the watch case, directly adjacent to the 3 o’clock hour. Although on some watches the crown is positioned on the left side of the case, parallel to the 9 o’clock hour, as well as adjacent to the 4 o’clock hour. On vintage watches from Cartier and Bulova, the crown is positioned on the caseback and requires a tool to adjust the time and date.
The crown is also susceptible for allowing moisture and water to enter the interior chambers of the watch case. Many watchmakers feature locking screw-down crowns on their timepieces for improved water-resistance. The crown can easily be unlocked for adjusting the date or time and/or winding the watch as well. If your watch does not have a screw-down crown, it is best to avoid contact with water to avoid damaging your watch.
Regardless of the type of crown setting you have, the crown needs to be handled with the utmost delicacy when you are changing the time or date to avoid accidently pulling out the crown.
Many chronographs and multi-function watches have additional setting mechanisms presented on the two sides of the crown. These are called Pushers or Push-Pieces and they operate on chronographs to run the stopwatch, minute and hour indicators, as well as on multi-function watches: the day, date, alarm and moon phase functions. Some push-piece models have protective covers to ensure further water-resistance on the watch.