Heydays Antiques has dated this piece to the 1800s.
Written on the back of the case is...

Circa 1828-30 mahogany cased 8 day grandfather clock with seconds & date chapter.
Charming painted dial by fennimores of birmingham
Under the movement pendulum cock is engraved "sg waters"
Fully serviced & in good working condition
Delivery & set up considered
Heydays Antiques has dated this piece to the 1800s.
Specialising in personal attention for 17/18/19th c traditional longcase clocks & early 20th c triple weight quarter chiming musical clocks
You can view the stock and full dealer information on the Heydays Antiques Profile Page