 |
 |
 |  |
 |
 |
 |
| Index No. A5730 | Rare Silver Dead Beat Verge |
| A rare late 18th Century Swiss resting wheel dead beat centre seconds verge in a silver open face case. Full plate movement with small resting barrel round pillars. Simple blue steel bridge cock with diamond endstone, large heavy plain three arm gilt balance with blue steel spiral hairspring. Polished steel regulator on the plate, engraved index with decorative engraving below. Rare dead beat verge escapement, the pallets cut into steel cylinders on which the tips of the seven tooth crown wheel rest. White enamel dial with centre seconds, small subsidiary for hours and minutes, Roman numerals, blue steel seconds hand, gold hands. Plain silver open face case, the front bezel decoratively engraved. | ||
| Anonymous | Swiss | |
| Condition | Circa | 1790 |
| Case | Excellent. | ||
| Dial | Excellent. | Diameter | 57 mm |
| Movement | Excellent. | Depth | 12 mm |
| A very rare form of escapement. Used by Breguet in watch number 942 with jewelled cylinders. See The Art of Breguet by George Daniels for an illustration of the escapement with five toothed wheel. In a standard verge dispensing with a fusee would cause a wide variation in rate. However as there is no recoil in this form of the escapement use of a resting barrel would have little effect. A small marine chronometer using this escapement with steel cylinders by Charles Oudin was sold in "The Longitude at the Eve of the Third Millennium". |
 3 Images |
 |
| . |
 | . |
| Main Stock Index | Top of Page | Site Index |
Antique Pocket Watches - - - Pieces of Time1 - 7 Davies Mews, -- London, W1Y 2LPTelephone + 44 (0) 207 629 2422 --- --- --- Fax + 44 (0) 207 409 1625 E-mail - info@antique-watch.com | ||