Geochron 925-B Original Kilburg Geochron Timepiece with 12-Hour Dial

By Geochron



Black Anodized

Height: 22.375in
Projection: 5in
Width: 34.25in
Weight: 33lbs


The Geochron allows any observer to determine what time it is anywhere in the world. The colorful map is an endless belt that is driven slowly from left to right by an electric clock motor in synch with the rotation of the earth. Time zone boundaries are delineated on the map by dark blue lines which converge on lettered pointers on the top edge of the map. These letters identify the standard time zones and also represent the short wave radio prefix for that zone.

  • Internal components are primarily of aluminum and stainless steel, as well as some polycarbonate parts such as the maps and light filters
  • The world map is made using a high resolution lithography process, which incorporates environmentally-friendly UV-Curable inks, rendering the maps resistant to ultraviolet light and scratching
  • Assembled by hand, lending a personal touch
  • Each Geochron passes through multiple quality inspection checks along the assembly process, including a rigorous 28 point inspection prior to shipping
  • 110V/60Hz (B Plug - USA/Canada)

The Geochron illustrates:

  • Legal time zones
  • Greenwich Mean time
  • Greenwich Apparent time
  • Local Apparent time
  • Moment of sunrise
  • Moment of sunset
  • Duration of daylight
  • Sun’s meridian passage
  • Sun’s equation of time
  • Degrees of latitude and longitude