I’ve had both variants and having seen the inner workings of both I’d personally be happy with recommending either. The only caveat here would be is whether you’re a stickler for accurate timekeeping. I for one am not but those who are should definitely go down the Spring Drive route as they are incredible and the sweeping hand is mesmerising. My Hi Beats on the other hand didn’t fair quite so well but if you’re more into your totally mechanical timepieces then this would be the obvious choice. Either way you wont go too far wrong. In terms of pricing, neither seem to hold up well initially on their RRP’s so buying second hand would be a no brainier.