We own world’s biggest cuckoo clock collection and have to move 750 timepieces forward for British Summer Time

Two brothers who own the world’s biggest collection of cuckoo clocks will spend three days moving 750 timepieces forward one hour this weekend - by hand.

Roman, 71 and Maz Piekarski, 69, have spent five decades sourcing their pendulum-driven machines, which are on display at their 'Cuckooland' museum. But as the clocks are going forward on Sunday, the siblings are now preparing to manually change every single cuckoo clock.

Roman said: "It takes two to three days but we really enjoy working with these types of clocks. We eat, sleep, breathe and live cuckoo clocks - it's so important.

"It would be nice if there was more people like us out there, who can dedicate themselves to doing something similar to what we've done."

Maz and Roman's remarkable hoard all come from a 25-mile area in the Black Forest, Germany, where the vintage timepieces were first manufactured. And among their revered collection is possibly the world’s most famous cuckoo clock, which was made for Frederick I, the Grand Duke of Barden, in the 1860s.

Roman says visitors come from all over the world to see the museum, which is in Tabley, Cheshire, and they are often left 'gobsmacked.'

He said: "People are absolutely, well and truly, gobsmacked. I can honestly say that in 35 years, we have never had a disappointed visitor - everybody loves coming round.

"When we do guided tours, we put the clocks at different times so they are going off all the time. You won't believe how many adults go running round when they hear the cuckoo clock going off, because they've got to see the cuckoo when it comes out."