The Lathem 4021 Automatic Time Clock features a rugged design that can withstand high-volume use or harsh environments. The heavy-duty synchronous motor ensures time accuracy while the precision coined steel type wheels offer smooth reliable operation. The large easy-to-read characters print along the right side edge of any size card or form. This automatic time clock prints Day of Week, Hour (1-12) and minutes. The large analog clock display is easy to read even from a distance and the heavy-duty, all-metal construction is ideal for any office or shop floor environment. Two-color ribbon self-reverses at end of spool for longer life. Time clock uses Lathem Ribbon 7-2CN. 2 keys included. Since 1919, Lathem time clocks have set the standard for quality, durability and accuracy.