• Here is a posting describing the new movement -- http://forums.timezone.com/index.php?t=tree&goto=4819658&rid=3020

• Some readers on TimeZone immediately post messages suggesting that this movement is nothing more than the Seiko --
  http://forums.timezone.com/index.php?t=tree&th=1393019&mid=4819684&rid=3020&rev=&reveal=

• And here is the text af a message, from Jean-Christophe, posted on WatchUseek --

  Hi, I'm J.C. Babin the CEO of TAG Heuer, and YES, the new Caliber 1887 is based on a SII (Seiko Instruments Inc.) TC78 platform developped and patented in 1997 (filing) and eversince produced in very limited quantities, apparently for Junghans and Seiko watches in Japan. The caliber we propose and announced last week in London is a major evolution of this platform even though I aknowledge that the overall construction may look similar at first glance. However, the TAG Heuer movement is much different in terms of components, size and eventually performances, not to mention it is manufactured (all its key components including plate, bridges, assortment, cannon pinion, eccentrics etc....) in Switzerland in TAG Heuer workshops of Cornol (Cortech - a company owned by TAG Heuer and already producing TAG Heuer and Zenith cases) and La Chaux-de-Fonds (where we have also the HQs and where we added 30.000 sq feet more last year for movements assembling and other manufacturig projects) as well as from "best in class" partners such as Nivarox.

  - Dimensions: it's broader (29.3 mm vs 28 mm) and thinner (7.13 mm vs 7.27 mm)

  - Therefore the main plate, bridges - especially the chronograph bridge - and oscillating mass have been significantly modified to allow this evolution

  - Its assortment is a swiss asortment specifically developped by Nivarox for TAG Heuer, and allowing to improve further accuracy and shocks resistancy

  - New assortment centring of the balance wheel also specifically developped by KIF, a leading swiss expert company in balance wheels centrings

  - Change and development of a new swiss engineered cannon pinion to increase time-setting overtime reliability

  - Redesign of the fixing of ball bearings of the mass to contribute reducing the thickness

  - Adjustements to pass the famous "60 TAG Heuer torture tests" in terms of accuracy, reliability, thermical and physical shocks resistancy, chemical agressions etc....

  We have today already 45 TAG Heuer people working full time on that project in Switzerland and work with 21 other suppliers for additional parts, most being swiss. Total investment is several tenth of mio USD.

  I would therefore qualify that movement as really in-house and manufactured by TAG Heuer even though, yes, the original IP has been acquired from SII. Please note that the original SII Caliber has always been praised by watches experts.

  I hope I answer your questions as well as our fellow Watchuseek lovers !!!

  Good evening - JCB

Jeff