The H30 is proprietary for Hamilton, it's got a nicer decorated bridge of the movement in addition to the longer reserve time.I've heard the escapement may be plastic which is a bit concerning but I've also heard that it's. So I know it's a derivative of a derivative of the ETA 2824-2 that has a lower beat rate and higher power reserve but there are a few things I'm unsure of. So I bought a Hamilton Khaki Field 38mm yesterday and so far I love it, my new favorite piece by far but I don't know a ton about the movement.All watches using the Hamilton H-10 movement: H70455533 Hamilton Khaki Field Automatic 38 Stainless Steel / Black H70455733 Hamilton Khaki Field Automatic 38 Stainless Steel / Black H70515137 Hamilton Khaki Field Automatic. A three-hand movement with or without a date function and boasting a power reserve of 80 hours, the H-10 appears in different finishes. Les nouvelles montres Kahki Field Auto (H70595963,H70595163) avec le calibre H-10 ont un fond de boite avec l'inscription 2824-2 mais il s'agit bien d'un calibre H-10 avec une réserve de marche de 80h Nous vous remercions de l'intérêt que vous portez à la maison Hamilton.The main spring has been improved to increase a typical power reserve of 80 hours
Compared to the original movement, the following changes have been implemented -The escapement regulator has been updated, facilitating optimal reliability and precision through inertial regulation. Home Hamilton H10 ou H30 Hamilton caliber H-30 » WatchBas