This image is not available for purchase in your country.

False-colour SEM of the crown wheel of a watch

False-colour SEM of the crown wheel of a watch

H100/0312

Rights Managed

50.0 MB (6.8 MB compressed)

4619 x 3780 pixels

39.1 x 32.0 cm ⏐ 15.4 x 12.6 in (300dpi)

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

BUY PRINT Embed

Credit

DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY

Caption

False-colour scanning electron micrograph of the crown wheel of a Swiss-made, 17-jewel INCABLOC watch. The crown wheel is part of the watch's winding mechanism. When the watch is wound, the winding pinion (small gear wheel seen edge-on at bottom) rotates, meshing with the crown wheel. The rotation of the crown wheel causes the ratchet wheel at top left to turn, & this wheel is attached to the barrel which holds the mainspring of the watch. The mechanism is clean; the tiny dust particles would not affect its function. The absence of screwdriver marks in the crown wheel's slot shows that the assembly has never been serviced. Magnification: x4 at 6x4.5cm size.

Release details

Model release not required. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}