====== Combo movement ======
A **combo movement** is a [[quartz]] movement with two different types of [[digital]] and [[analog]] displays.

===== History =====
The combo movement first appeared in [[1975]], as [[LED]] digital watches were gaining traction. [[Beltime]] also used the term "combo" at that time for watches that combined [[LED]] and [[LCD]] displays. [[Heuer]]'s [[Chronosplit]] also used both technologies, with the LED used for the [[chronograph]] function.

[[Zenith]] was one of the first to market with a watch that used hands for hour and minutes and a digital LED array for the seconds. Their [[Zenith Time Command|Time Command]] was a futuristic rectangular watch with a pushbutton LED display at 5 00 or 6 00. A similar module was created by [[Microma]] in [[1978]], which used continually running LCD below the dial.

In [[1979]], [[Citizen]] launched the [[Digi-Ana Combo]] movement, which was also called "Ana-Digi" in some advertisements.

In [[1984]], [[ESA]] launched a range of thin combo movements, including the [[ESA 958|Flatline Combo Cal. 958.331]], which measured just 2.0 mm thick, the [[ESA 988|Combo Dichroic Cal. 988.331]], which was 3.0 mm thick including the dial, and the [[ESA 999|Combo Delirium Cal. 999.331]], which allowed a 2.98 mm thick watch.


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