High Torque Long Shaft Quartz HR1688 Clock Movement Mechanism Replacement Clock Features: The HR1688 caliber 2 gear is made of high-quality nylon material, which is flexible, has low noise and long service life.HR1688 movement's electronic coil is not only sufficient material coil large and use a high-quality bright copper lacquer wire winding, in addition to the stator piece is also the choice of nickel-iron materials, its high permeability, low resistivity has a role in saving electricity. Specification: Crystal frequency:32.768KHz Timing Accuracy:±30Sec/Month(1.5V DC. 25℃) Current Consumption:Less than 130μA(1.5V DC.) Operating voltage: 1.3v to 1.7v Operating Temperature: -10°Cto50°C Power supply: 1.5v Battery life (specification): Approx. One Year (UM-3) Weight: Approx. 25g/PCS Second hand output torque: ≤0.6gf-cm(1.5V) Minute hand output torque: ≤30gf-cm(1.5V) Requirements for pointer specifications: Second hand length/weight: ≤130mm, ≤2g Minute hand length/weight: ≤200mm, ≤6g Second hand unbalance moment: ≤0.15gf-cm Minute hand unbalance moment: ≤6gf-cm Shaft lengths available in 8: Shaft length 8mm, unthreaded Shaft length 13mm, thread height 5.2mm, suitable for 1-2mm panels Shaft length 14.5mm, thread height 6.7mm, suitable for 2-3mm panels Shaft length 17mm, thread height 9.7mm, suitable for 4-6mm panels Shaft length 20mm, thread height 11.7mm, suitable for 6-9mm panels Shaft length 22.5mm, thread height 14.5mm, for 9-11mm panels Shaft length 28mm, thread height 20.5mm, suitable for 11-17mm panels Shaft length 32mm, thread height 24mm, suitable for 18-21mm panels Package Includes(Optional): 1*movement(14.5/17/20/22.5/28/32/13mm) 1*nut 1*Washer 1*Gasket or 2*Metal hook Note: The HR1688 jumping-seconds movement uses a single #5 battery. The battery slot of the movement is not equipped with a battery cover Please allow 1-3mm error due to manual measurement. Please make sure you don't mind before ordering. Please allow 1-3g weight error. Please make sure you don't mind before ordering. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual colour of the real item. Please make sure you don't mind before ordering, thank you!