The Omegas earn common interest among LED watch collectors and they shurely deserve it. Though there is some confusion regarding the model names also because Omega itself used different names in their documentations like Time Computer, Digital or Constellation. The names in the list below reflect an average of the mainly used ones for each model.
The modules caliber 1600 und 1601 were obtained from Pulsar (equal to 201 and 301), as well as the cases obviously were made by the manufacturer of the Pulsar cases. Because it seem the "parallel model" to the Omega Time Computer 1, the Pulsar P2, was not distributed in Europe the Omega TC1 should have been the very first LED watch on the european market in fall 1973. After this cooperation with Pulsar ended elektronics for the calibers 1602 and 1603 were obtained from Frontier.
This is a list of all Omega LEDs that were available:


  Swiss ref. Caliber Version Historical prices
Link to tc1wg.jpg Time Computer 1 3960812 1600 18 kt yellowgold
SFR   5200,-
SFR   1750,-
SFR   1800,-
Link to tc2gg.jpg Time Computer 2 3960831 1601 yellowgoldplated DM     2000,-
Link to tc2st.jpg Time Computer 2 3960832 1601 stainless steel DM     1500,-
Link to omd1.jpg Omega Digital 1 3960833
1602/1603 stainless steel
gold plated
DM     1000,-
Link to omd2.jpg Omega Digital 2 3960836
1603 stainless steel
gold plated
SFR    700,-

Link to 1601.jpg Caliber 1601 (1600 similar)
Link to 1603.jpg Circuit board 1603

General hints

How to set an Omega?

Caliber 1600, 1601: Place the magnet into the right slot of the case lid (view from upside) until the forthcomming minute is reached. At second 0 push the time demand button (right) to start the watch. After that place the magnet into the left slot to set the hour.
Caliber 1601: To set the day press both buttons and place the Magnet into the left slot. AM - point up, PM - point down. To set the month press the date button (left) and place the magnet into the left slot.
Caliber 1602, 1603: By pressing the set button (at three o'clock) the watch enters the setting mode and moves forward in it. By pressing the demand button you can change the settings.

Which batteries to use?

The most economic solution for those who can change batteries themselves is the alkaline button cell AG12. It has about 35% less capacity than the comparable silver oxide type 386, but it cost one fifth - only a few cents at a wholesaler. For safety reasons the usage of spacers (rubber o-ring for example) at the calibres 1600 and 1601 is recommended, regrettably the original very big button cells are no longer manufactured.


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