26.8 MB (2.6 MB compressed)
3543 x 2645 pixels
30.0 x 22.4 cm ⏐ 11.8 x 8.8 in (300dpi)
SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Scanning electron micrograph (SEM) of the component parts of the winding & hand setting mechanisms of the movement of an inexpensive watch (made by Timex) showing the minute & hour hand (top); the toothed wheel below is the hour wheel. The large wheel (bottom) is fitted to the barrel housing the mainspring, the power source which drives the watch train (the reduction gearing system which displays the time). Magnification: X20 at 10x8 inch, X3 at 35mm size.
Model release not required. Property release not required.