Measuring just over 6in (16cm) wide, the fan-shaped clock with an easel-back was marked in three places for the workmaster Michael Perchin and housed a double barrel Swiss jewelled lever movement numbered 67466 and signed Hri Moser et Cie.
Kidner's vendor at the sale on July 25 was a descendant of the family member who had bought it sometime before 1964.
The buyer's premium was 17.5%.
