Worboys Antiques has dated this piece to the Regency era.
A William Kirk is listed as working in 1856, although this may well be the next generation.

Current Condition
The case has been repolished, the movement has been serviced in our own workshops and is guaranteed for 12 months.The original bezel lock is not present,
Dimensions
17.00cm deep ( 6.69 inches deep)
37.00cm diameter ( 14.57 inches in diameter)
Worboys Antiques has dated this piece to the Regency era.
Established since 1978, dealing in and restoring most antiques, specialising in clocks and furniture.
You can view the stock and full dealer information on the Worboys Antiques Profile Page
Worboys Antiques is a registered member of LAPADA