Movement axis length: 15mm Crystal frequency: 32.768KHz Timekeeping accuracy: 30Sec/Month at 1.5V DC. 25(unadjusted) Current consumption: Less than 190A at 1.5V DC. Operating voltage: 13V to 1.7V Material: metal Color: as shown Rated voltage: 1.5V Operating temperature: -10 to 50 Battery life (specification): . 8 Months (UM-3) Weight: . 26g/PCS Second hand output : 0.6gf-cm (1.5V) hand output : 30gf-cm(1.5V) Pointer specification requirements. Length/weight of second hand: 120mm, 2g hand length/weight: 220mm, 6g Second hand unbalance : 0.15gf-cm hand unbalance : 6gf-cm Package Contents: 1 x metal swing movement set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.