Uses a series of 155 and 514 microcircuits, a vacuum quartz resonator. The accuracy is very good: 1-3 seconds per week.Includes AC power supply 100-240 V, 50-60 Hz. ITV-4 clock unit the original is complete from aircraft Tu-134. The white buttons set the time primarily, the brightness of the indicators is controlled by scrolling the black button. Don't miss chance to expand your collection! Look at the original photos! You receive what you see! The item "Soviet Aircraft Tu-134 Nixie Tube Clock Military style Aviation Time Indicator" is in sale since Thursday, October 14, 2021. This item is in the category "Home & Garden\Home Décor\Clocks\Other Home Décor Clocks". The seller is "mag8-ru" and is located in RU. This item can be shipped worldwide.