Interesting: another 1163 GMT with the features Abel described in a post in the last month, and two others confirmed (myself and one other) on other examples of a GMT:
- 1st execution dial with no red flashes, 1-2-3-12 on the hour counter
- 1st execution steel M+H hands
- Orange main chrono hand
- Red subdial hands
- arrow 24h hand (not rectangle)
Once again looks like matching patina across the hands/dial set

I am beginning to think that the orange chrono hand and red sub dial hands were installed at the Heuer factory. It seems too common place to find watches with combination of hands with quite even patina - so service hands seems less likely.

Anyone disagree?