BATTERY CLOCK: A real clock driven by accurate quartz battery movement. 
BELL TIMER: A timer driven by spring and will ring when time is up (max: 30mins).
REAL PEUDULUM: A spring-driven pendulum with precise anchor escapement.
ELEGANT OUTLOOK: Appealing owl shape and beautiful Roman numerals dial. It will be a delight to eyes as a home decor.
PERFECT GIFT: Gift for mechanical lovers or family & friends at any occasions like birthday, father's day or Christmas. Fun of kits building & brain teasing of mechanical engineering
 
Specification
Assembled Size: 206x128x265 mm (8.11*5.04*10.43 inches)
Packaging Size: 345*235*57 mm (13.58*9.25*2.24 inches)
Weight: 1080g
Pieces: 161pcs
Energy Source: Battery/Windup
Assembly Time: 4 hours
If you assemble the product correctly and use the wax inside to reduce the friction between wood board properly, the clock will run for 1-3 hours.