Equal hours
| Type: | Equal hours |
| Style: | 12-hour scale, clockwise from throne. |
| Geometry: | Circular, concentric |
| Unit of measurement: | Times of day |
| (Numbering) starts at: | 1 |
| (Numbering) ends at: | 12 |
| Numbered: | Every 1 |
| Repeats: | 2 times |
| Divided every: | 15 (Times of day) |
Scale located on: Rule, Alidade, Regular or Pointer .
Location(s) detail:
| central flange: | Any scale found around the flange surrounding the central pivot point (central flange) |