Brand new in factory sealed box.  Made in Ukraine, this Advanced Level puzzle will take about 11 hours to complete and is made of 320 individual parts.  This unique 3D puzzle fits together without glue and when complete, is a fully functioning clock.

• Mechanical clock puzzle: Aero Clock is a fully functioning DIY wall clock with a pendulum and is the #1 "most-requested" model building kit by our loyal customers
• Be the proud clocksmith: Like all UGEARS 3D puzzles for adults and kids, you are the creator in chief. You build it, mount it on a wall, then wind up this pendulum clock kit and watch the minutes tick by
• Elegant simplicity: This mechanical clock is driven by the force of gravity and has a miniature hot air balloon instead of the classic cuckoo to mark the hour. The balloon descends when the hour strikes, then it slowly rises again for the next 60 minutes
• Challenging adventure: Assembling this 3D puzzle construction guarantees you 11 hours of fascinating building either on your own or in good company
• Father's Day Gift Idea: This 3D clock puzzle is both a timely and timeless gift. Get our exquisite mechanical gear clock kit and delight all the horologists, hobbyists, explorers, creatives, and romantics in your life