imported post
It's an ETA E20.321.
TAG uses it in the
CAF1010.BA0821 TAG HEUER Aquaracer Chronotimer Mens Watch
Accutron has it in the Telluride 26C07 Multi-function
Here's what I found on the Omega X-33 and the earlier Seamaster multifunction. It appears to have used a modified version of the ETA E20.321 (the X-33 doesn't):
The X-33 features the in-house developed and unique to Omega 9-jewel quartz crystal controlled calibre 1666 movement, manufactured by Swatch Group cousin ETA (ETA designation E20.321). The movement was designed especially for the X-33 and has
never been used in any other model despite continuing contentions to the contrary. Though various brands like Breitling, Bell & Ross and others have used ETA-made multifunction movements similar to those in the earlier Seamaster Multifunction, the 4-pusher cal.1666 and its unique digital display layout and half-step minute hand remain
exclusive to the Omega X-33. The cal. 1666 is a
non-thermocompensated movement. In a temperature compensated movement, the frequency of oscillation (pulses per second in this case) stays practically the same at whatever temperature the quartz crystal is subjected to [within limits]. A typical watch crystal tends to operate at 32,768Hz with a frequency period of 30.52uS, however regular watch crystals will dedward wrote: [/b]
none of these use the omega movement.Where did that come from?the omega is a 1660 caliber, highly jeweled and finished movement. none of those has the dial layout to support that movement.Also, that movement costs more than any invicta or renato
