Part# 10-22812
MFR Model# CK-7264-12


Clocks are constructed for easy installation in a wide variety of replacement applications for home builts. The rugged quartz movement is accurate within 2 sec. in 24 hrs under normal operations and runs accurately in temps from -30 to 180F.
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  • 2-1/4" OD
  • 2" Depth
  • 4 ounces
  • Frequently Purchased With
  • Customers Also Viewed


Excellent clock, however I recently learned that it should be wired via the master switch unless you fly weekly, as I used to. Otherwise at 12.8 mA my Gill 24V battery (14Ah rated) will loose enough charge over 2 weeks to make starting my O235 difficult.

Bob K
February 14, 2023

Great little clock - my old one went for 40 years.

Ric D Verified Purchase


November 2, 2022

Nice replacement for a wornout mechanical clock. Looks well with older style guages

Larry K Verified Purchase


April 13, 2022

Perfect replacement for my Cessna 172M. Very east to install. Fits perfect

Michael A Verified Purchase


August 3, 2021

Needs to have teflon coated wiring for airplanes.

Mark W
January 18, 2021

Delivered promptly and working well.

Michael J
September 30, 2020

clock is in and works fine I wonder with future up grades should I installed it.

Gary B
July 1, 2020

Mine has been running since October 2017. I reset for daylight- standard time, otherwise it stays within a minute.

David V
January 7, 2019

very happy with looks and time keeping reasonably price and well constructed

John S
May 10, 2018

I wanted to wait a week or two to review the clock to make sure it kept working. My luck was much better that the previous reviews. Clock arrived quickly and well packaged. Change out of my old quartz clock was straight forward and replacement took about 20 minutes. So far I’m very pleased!

June 1, 2017


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What is the size of the Quartz Electric clock?

This clock fits in a 2-1/4" hole and has a depth of 2 inches not including wiring.

Q: How much does this clock weigh?

The clock weights about 4 ounces.

Q: What is the draw on the battery of this 12V Quartz aircraft clock? Part # 10-22812

Per the supplier: 10-11 Milliamps.

Q: Is the Quartz Electric Clock lighted and who is the manufacture?

No, it is not lit and is made by Instrument Services Inc.

Q: Is this Quartz electric aircraft clock Approved for certified airplanes?

Per the manual, "This clock is to be used as a time indicating clock only. It is not to be used as a flight instrument and or warning instrument."

Q: Is the wiring included with the quartz aircraft clock, part # 10-22812?

Yes, the wiring is included in the box.

Q: What is the current draw of the clock?

Per the supplier: 10-11 Milliamps is the current draw on this unit.

Q: Does it require a notch in the panel for the setting stem?

Yes, there will need to be a cutout to allow the stem through the panel.

Q: What is the warranty on the part number 10-22824?

1 year warranty from date of mfg. Minimum exceptions apply.

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