What are the part names of watches?

An example of a typical analog watch with a leather strap

An example of a typical analog watch with a leather strap

(A-1) Hour mark
Line or dot used as gradation for the hours.
(A-2) Lug
Part attaching the case to the band. Metal bands integrated to the watch are called integral bands.
(A-3) Dial
The face of the watch that shows the hour markers.
(A-4) Second hand
Some watches do not have a second hand. When a watch has the second hand connected to the center, as shown in the figure, it is called a center second watch.
(A-5) Case (side)
Part that includes the crystal, the bezel, the case body, and the back of the case. The mechanical parts inside the case are often called movement.

An example of a typical analog watch with a leather strap

(B-1) Lug hole
Hole where to insert the spring bar. The spring bar is used when installing the band.
(B-2) Free loop
Same use as the fixed loop. This loop can move along the band.
(B-3) Fixed loop
Loop used to fasten the excess portion of band section attached to the six o'clock side. It is fixed to the band.

An example of a digital watch with a metallic band

An example of a digital watch with a metallic band

(C-1) LCD panel
Panel that digitally displays the time, calendar and other functions. This part corresponds to the dial on analog watches.
(C-2) Case
Part that includes the crystal, the case body and the back of the case. The parts inside the case are often called module.
(C-3) Push button
Button that can be pushed to set the time, the calendar, and other functions. The watch in the figure shows four buttons.
(C-4) Lug
Part attaching the case to the band.
(C-5) Panel cover
This part covers the display section and determines the panel view. Generally, it includes indications and marks for time display.

An example of a digital watch with a metallic band

(D-1) End piece
Piece at the end of a metal bracelet that attaches to the case. It is also called end link.
(D-2) Band
Metal bands are also called bracelets.
(D-3) Buckle
Part used to attach the two sections of the band. Some buckles allow the user to adjust the length of the band.