| Year | 2007 |
| Date | 13-Apr |
| Volume | 198 |
| Issue | 4,297 |
| Page | 446 |
| Category | Horology |
| Part | 3 |
| Title | Magnetic Drive Clock |
| Author | Richard Stephen |
| Notes | Continues with a different type of pinion drive. Fitting the back cock, the pinion drive mechanism, the arbors, the intermediate and centre arbors, pendulum arbor, inserting the roller clutch into the drive housing, arbors and collets |