Collecting Tissot

Hello, I purchased my first Tissot Le locle powermatic 80 and absolutely loved it and now I am deciding to start collecting more Tissot automatic. Can some please educate a little on Tissot movements. Please see the picture of the Movements I would like to purchase.

1.) Tissot Chronograph 17 jewel movement

2.) Tissot Le locle with 25 jewel movement. With Arabic numbers

3.) Tissot Le locle with 23 jewel movement. this one I purchased.

I would like to know if I should purchase the 17 jewel Chronograph first or the 25 jewel Le locle.

Thank you very much for your time and help in advance

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Thank you very much for your help. Greatly appreciated