Very few companies produced a Quartz Controlled Balance Wheel movement; only Record-Golay, Porta, Citizen, Luch and Timex; the Model 63 is their version.

The Model 63 movement was introduced about 1973 and production ceased in 1980. The connection with the ubiquitous Model 40 is obvious; in fact, if you remove the circuit board and then connect the two supporting post together, the movement both looks like and runs like a Model 40!

There is an earlier quartz-controlled movement, the Model 62, but this is a very rare beast. I believe it was not around for long and was quickly replaced with the Model 63.

• Model 62 : quartz controlled : 21,600 bph : day and date
• Model 63 : quartz controlled : 21,600 bph : day and date

Timex Q Quartz Model 63. 1976 (9885106376)	Timex Q Quartz Model 63. 1976 (9885106376)	Timex Q Quartz Model 63. 1976 (9885106376)	Timex Quartz Model 63	Timex Quartz Model 63. Booklet	Timex Quartz Model 63. Booklet
Timex Quartz Model 63. Box