actual size 14 cm
Watchmaking, Omega series
- Parts
- 195
- Build
- 9 hrs
- Level
- Expert
actual width 12 cm
Watchmaking, Spectra series
Torsion Pendulum
€37.80
A torsion pendulum clock. The balance disc hangs from a calibrated steel wire and turns slowly one way, pauses, then sets off the other way. Each oscillation is long, so the escapement releases the gear train only rarely. It runs for 24 hours: wind it once a day.
- Parts
- 95
- Build
- 4 hrs
- Level
- Advanced
- Footprint
- 12 × 12 × 24 cm
- Weight
- 360 g
- Glue and battery
- None
Advanced: several axes to adjust together
Batch sold out: the next one is being made in the workshop
- Missing part replaced free
- Ships within 2 business days
- 14-day returns
- Illustrated manual included
Ages 14 and up. Contains small parts.
Torsion Pendulum in detail
The story
Instead of swinging, a torsion pendulum turns: a disc hanging from a fine wire rotates one way, then the other. The principle made the "400-day" clocks of the late 19th century famous, able to run for more than a year on a single winding. The same torsion wire had been used in 1798 by Henry Cavendish to measure the density of the Earth.
What you'll see move
The balance disc turns slowly, pauses, then sets off the other way, always at the same pace. With 24 hours of running time, it is wound once a day.
Specifications
- Number of pieces
- 95 pieces
- Assembly time
- 4 hrs
- Difficulty
- Advanced
- Dimensions
- 12 × 12 × 24 cm
- Weight
- 360 g
- Material
- PLA with 30% wood fibre
- Hardware
- Micro-screws and ball bearings included
- Glue required
- None
- Battery required
- None
In the box
- 95 wood-fibre composite parts, ready to assemble
- Micro-screws and ball bearings
- Illustrated step-by-step assembly manual
- No glue and no batteries: everything fits together and turns by hand
14+
Ages 14 and up. Contains small parts: not suitable for children under 3, choking hazard.
From the same family
actual size 16 cm
Desk Chronograph
€63.00
Watchmaking, Omega series
- Parts
- 175
- Build
- 7 hrs
- Level
- Expert
actual size 12 cm
Simple Anchor Escapement
€34.20
Watchmaking, Alpha series
- Parts
- 48
- Build
- 1 hr 30 min
- Level
- Beginner