Youngtown 12888 2 Pack Clock Movement Mechanism with 4 Pairs of Short Hands Battery Silent Sweep Operated Quartz Clock Motor Kit DIY Repair Parts Replacement,Total Shaft Length is 19 mm (3/4 inch).

Features: Material: plastic and aluminum Second hand motion: Sweep Accuracy Within ±30seconds deviation each month (in normal temperature) Battery: one 1.5V AA batteries only,not included. Dimensions: Case size: approx. 56 x 56 x 16 mm (2.2 x 2.2 x 0.65 inches) Hands 1 Total hour hand length: approx. 55 mm (1.96 inch) Total minute hand length: approx. 70 mm (2.75 inch) Total second hand length: approx. 93 mm (3.66 inch) Hands 2 Total hour hand length: approx. 43 mm (1.69 inch) Total minute hand length: approx. 58.5 mm (2.30 inch) Total second hand length: approx. 82 mm (3.22 inch) Hands 3 Total hour hand length: approx. 49.5 mm (1.94 inch) Total minute hand length: approx. 62.5 mm (2.46 inch) Total second hand length: approx. 63.5 mm (2.50 inch) Hands 4 Total hour hand length: approx. 58 mm (2.28 inch) Total minute hand length: approx. 75 mm (2.95 inch) Total second hand length: approx. 88 mm (3.46 inch) Package included: 2 x Quartz clock movement 2 x Second Cap Nut 4 x Second hand 4 x Minute hand 4 x Hour hand 2 x Rubber gasket 2 x Brass washer 2 x Brass nut 2 x Metal hook 1 x Instruction

• Package contents: 2 movements, 4 pairs of hands with different shapes, 2 Metal hooks, and some accessories.come with the specially designed protect box and instructions.
• If you want to replace your old movement, carefully measure the movement shaft length. Please according to picture 3 to choose the right size.
• Choose the right clock mechanism: total shaft length is 19 mm (3/4 inch),thread length is 11 cm (7/16 inch); suitable for 4-8 mm ( 5/32 - 5/16 inch )thickness clock panel.
• Good DIY clock supply: 4 pairs of hands with different shapes,perfect for clock face over 5 inch in diameter.suitable for repairing, replacing the broken parts of a clock or serving as good handwork material to make a clock by yourself.
• Accurate Time-keeping & Quiet Motor: features Youngtown 12888 clock mechanism, which offers watchmaker's accuracy and dependability; equipped with sweeping motion, no ticking; powered by a AA battery.