| Year | 2023 |
| Date | 03-Nov |
| Volume | 231 |
| Issue | 4,729 |
| Page | 619 |
| Category | Horology |
| Part | 4 |
| Title | A Model Engineer's Clock |
| Author | Jim Clark |
| Notes | Makes a skeleton clock making good use of modern manufacturing methods. Testing the clock, performance under various spring power settings. Great wheel pinion - excessive side play, simple test rig to measure pendulum swing, 9-tooth pinion, a typical lantern pinion, length of pendulum - the bob hangs very close to the base, balance weight for minute hand, skeleton chapter ring, the benefits of testing and proving, finishing touches - the clock face |