1600E Tru-Align Atomic Time Clock

Atomic time clock and document stamp with Tru-Align™

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Super-bright LED light for easy viewing

The 1600E employee time clock's large LCD display shows date, time and day of the week and a bright LED light illuminates the Tru-Align print area for easy viewing. With a sleek compact design and small footprint, the 1600E mounts easily to wall or can be used on a table top. 

Tru-Align™ perfect punch every time

Tru-Align™ provides fast printing and exact print alignment. Using the optional Tru-Align compatible time cards, the Tru-Align technology senses when the printer is aligned correctly with the proper space on the time card and only then will it automatically trigger an imprint. This guarantees that your employees make the perfect-punch on their time cards every time. The whisper-print technology delivers extremely quiet time card punches and printing. Prints date and messages and time in AM/PM or 24HR format including seconds.

Precise, accurate atomic time

Using the same technology NASA employs to tell time, the Model 1600E wirelessly synchronizes with the National Institute of Standards and Technology's (NIST) atomic clock in Colorado. Perpetual calendar until Year 2099, changes year, month, date automatically and the time during Daylight Savings. Never needs resetting, keeps time and your settings during power outages.

The versatility of an employee time clock or document stamp

As a time clock, the 1600E records employees' in and out times for payroll processing. As a job clock it can track project time for accurate costing. And as a document stamp, the 1600E can print the date, time and preset messages on important documents.  Includes over 200 different time, date and comment print formats available and with an easy to change ribbon cartridge the 1600E is very low maintenance.

Shop online for accessories

Select from a complete line of accessories for the 1600E time clock. From time cards and time card racks, color ribbon cartridges, to annual hardware support agreements, all that you need to custom fit a Lathem time clock to your business. Order direct from the Lathem online store. Accessories are in stock and available for immediate shipment.


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  • Features
  • Specifications
  • Resources
  • Reviews
  • Synchronizes time via radio wave to the US atomic clock in Boulder, CO
  • Super-bright LED light illuminates print area for easy viewing
  • Tru-Align™ option provides fast printing and perfect punch alignment (25 Tru-Align time cards included)
  • Perpetual calendar until 2099 (changes year, month and date automatically)
  • Automatic activation for simple one-hand printing, manual activation for accurate print positioning or combination automatic/manual activation ensures proper registration
  • Keeps time during power outages
  • Choose from 18 preset print formats
  • Choose from 13 preset messages: RCVD, SENT, IN, OUT, CFMD, FILED, PAID, USED, FAXED, VOID, ORIGN, APR’D, CMPL’D
  • Print time in AM/PM or 24 hour format
  • Large LCD display shows date, time and day of the week
  • Selectable English, French, Spanish, or Portuguese language for printing
  • Use standard time or job cards, or optional E16-100 Tru-Align cards
  • Mounts easily to wall or desktop
  • 5.7"H x 6.3"W x 7.2"D, 4.4 lb
  • Dimensions: 6.3"W x 7.2"D x 5.7"H
  • Weight: 4.4 lbs.
  • Power: 120VAC ±10%, 60HZ, 0.4A
  • Operating Temperature: 23°F - 113°F (-5°C - 45°C)
  • Operating Humidity: 20% - 80% RH, non-condensing
4 / 5
Had an older model 10 plus years old that finally died. Lots of hunting for options and we came right back to the Lathem. My only complaint is that it not the last one we had can’t quite line up and print vertically on the card exactly between the lines. Does not effect use, just bugs me, lol. Getting it set the way you want is a bit challenging at first, but manageable. Love the atomic clock feature!
5 / 5
Due to the layout of our business, we use these throughout the premises and they are reliable, easy to set up and get the job done! Ink Ribbons and Cards very reasonable and the best way to get the data for our set up.
5 / 5
Great Product. Very reliable time clocks, very little maintenance.
5 / 5
I would recommend this time clock to companies looking for a dependable time keeper. Being a small company the ribbon lasted four years so it is very economical for us.
5 / 5
The time clock works great! Really like the window & light that guide where the stamp will be.
5 / 5
Correct cards for our time clock. The price was right and they arrived on time.
5 / 5
Excellent. Product delivered performance meeting and exceeding expectations.
5 / 5
Getting everyone set up for work and clock in and out just got better.
4 / 5
Still getting familiar with it. We had a cheaper one before that lasted 3-4 years. Hoping for the price this one works a little longer but it seems nice.
5 / 5
Easy to install and use. Battery back-up is a great feature.
4 / 5
I use it in a professional kitchen to document ticket times. Works great, this is my second one, not because the first one failed, but because my staff accidentally melted it...Seriously

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