Tag Heuer is a large producer of high end wrist watches and recently they have taken on the Sellita movement for some of their newer pieces. The Caliber 18 (aka Sellita 300 with Dubois Depraz module) Chronograph is a bit smaller than some of their other ETA (aka Swatch) versions and took to this SW-300-1 nicely. I like that Tag has opened the door to other options and I personally have had nothing but great luck with watches outfitted with Sellita movements. The Sellita movement in detail below.
- An excellent PDF to see the movement specs in detail: Sellita SW-300-1