- It keeps out vibration
- Insulates the chronometer from changes of temperature of the air outside.
This compartment also has a glass top so that the chronometer may be read without opening the compartment or the box.
How transportation of Chronometer is done?
- When transporting by hand over short distances, lock the gimbals suspension to avoid any excess swinging movement of the instrument.
- Avoid twisting motion or jarring motion which could stop the balance wheel or the chronometer have irregular daily rate.
- Place the chronometer on the lap when sitting down. It should not be kept on the floor.
- If the chronometer to be transported over long distance, the instruments should be packed for transit as follows
- Remove the chronometer from its gimbals ring.
- Wedge the balance wheel using the original cork wedges, if available.
- If not available use stiff paper to wedge the balance wheel.
- Detach gimbal rings.
- Place the chronometer on the bottom of the box and pad it carefully on all sides to prevent movement in any direction.
- Label the box for careful handling “DELICATE INSTRUMENT HANDLE WITH CARE”.
Maintenance of Chronometer
- Lubrication
- A chronometer needs cleaning and oiling, by a chronometer repair firm, once every four years.
- If not done undue wear and tear would result due to lack of lubrication.
Note: It has been estimated that the cost of repairing a chronometer that has run for eight years without cleaning and oiling may exceed the cost of a new one!
