Uploaded February 2022 | Updated September 2026, 10 minutes ago

---

The Precisa 364 is an adding listing machine that can also do multiplication. It was made from 1963 to 1978. The Precisa 160 is the same but without the multiplication functionality.

For more information about this and other machines in my collection, please visit my website:
jaapsch.net/mechcalc

0:00 Introduction, Precisa 160
0:41 Precisa 364
1:42 Addition
2:15 Subtotal
2:46 Total
3:10 Subtraction
4:11 Non-add
4:45 Repeated addition
5:04 Clearing input
5:15 Repeated subtraction
6:14 Multiplication
7:08 Negative multiplication
7:36 Squaring
8:21 Shortcut multiplication
9:00 Repeated multiplication
10:45 Opening case
12:10 Outro