| Year | 2007 |
| Date | 16-Feb |
| Volume | 198 |
| Issue | 4,293 |
| Page | 200 |
| Category | Horology |
| Part | 1 |
| Title | Magnetic Drive Clock |
| Author | Richard Stephen |
| Notes | Describes a new clock to challenge readers. Big balance version, half second pendulum clock, side view, materials required for the half second version, front and back plates, half plate DXFs, cutting out the front and back plates, profiling the plates |