Thank you for all your help and recommendations everyone. I'm a little taken aback at how helpful everyone has been on here! That's a lot more replies than I thought and probably too many to reply to all individually, so my apologies!
Having read some recommendations and looking around a bit more, I am very close to settling on the Orient Kamasu... I like the design a lot, and it has the bonus of sapphire crystal, unlike the Mako.
I do really like the look of the Christopher Ward watches recommended by @Rookie1986... definitely one that is going on my bookmark list for a later purch