| 1 | 1956 | A mechanical watch with a spiral bimetal thermometer is sold by Mortima of Morteau, France. |
| 2 | 1976 | Cristalonic GmbH of Munchen presents a prototype of the 'Thermo Solar-Q' or 'Thermo Solar Quartz' at the 1976 Basle Fair. This is a solar energy powered watch with a temperature sensor. No commercial production. |
| 3 | 1982 | Citizen produces the first temperature measuring electronic watch in the world: the 'Ana Digi Temp'. |
| 4 | 1982 | In September, Casio launches the 'Temperature' TS 1000 and TS 2000. |
| 5 | 1982 | 'Thermotime', an analogue watch with temperature indication on a LCD screen, is introduced. |
| 6 | 1991 | Seiko's first watch with a temperature sensor, the W700 is marketed. |
Multifunctional Wrist Watches · No. 11
11. Temperature Measuring Watches
The first temperature measuring wristwatches.