Anyone seen other Tissot Seastar wrist 'Alarm' dials vs 'Sonorous'?

Hi OF
I came into the Tissot I have currently listed in Private Sales a few years ago as part of a small Tissot collection purchased by a dealer I know... story was that the Alarm branding was used instead of Sonorous in the Asian market because of some sort of trademark issue. Anyway, a member raised question with me via PM comparing the dial to a couple on eBay - not just the Sonorous difference, but also the inner-track, lack of lume on hour markers and hands and different font for the Tissot and applied logo; i.e. a quite different dial on what otherwise appears to be an identical watch.
I thought it might be a different reference but the same 40500-4X reference seen with the Sonorous dial... pics below firstly of my dial with Alarm and then Sonorous example taken from eBay...
Any Tissot aficionados out there with thoughts? A faked/re-made dial or one that just not seen very often?? And if faked, why bother on a Tissot and make a dial with several different features?
Many thanks - Martin

The first image does indeed appear to have a repainted dial (a "redial"). Redials are quite common across all marques; perhaps the dial was damaged at some point in its past life and a watchmaker attempted to improve the appearance by repainting the dial.

Advertising and catalog images from back in the day can be a useful reference as to what a period correct dial should look like, although they cannot cover all of the different dial variants that may have been made so you have to use your judgement.

This image from a 1968 advertisement suggests that the T-block was in the center of the alarm chapter with the "TISSOT" logo centered underneath, similar to the second eBay example above: