Bellroy isn't really known for their leather quality.
If you don't go for designer brands, you can take a look at Chestermox and Guarded Goods.
I personally have a Chestermox bifold, using Barenia leather, which is one of the leather that Hermes uses for their bags.
Agreed. Bellroy has good designs, but the leather quality isn't the best. They do have their
Designer Edition line which uses better leather, but of course the price is higher for those. You get what you pay for in the end. IMO when you are buying a designer brand, you are also paying for the brand and not so much the quality. People think of brand as a proxy for quality, but not so much for most big brands.
Handmade stuff are (almost) always of a better quality, and there is no lack of crafters out there that can make high quality wallets for the same price as those branded ones. Ironically, as these crafters get more famous and think of going full time or scaling up, inevitably they sacrifice their quality for mass production, and eventually become similar to a designer brand wallet.
For now, if you want to support local, can check out
thewysden,
hei.crafted,
74watchstraps,
hide_sg,
crimsonhides. That's off the top of my head, I'm sure there are many more hobbyist crafters out there in SG, but these are the guys I look to when I want to benchmark my work
But I do admit, one problem with hand made wallets is that they tend to be pretty thick compared to those in departmental store. Partly because these wallets are fully made of leather (as compared to the store bought ones - if you look between the card slots its often made with synthetic materials), but also because it is difficult to procure leather that is thin enough and skiving (thinning out) leather by hand without a machine is incredibly time consuming.
In terms of leather quality, apart from Barenia, Buttero and Chevre are also popular choices (Buttero for its beautiful patina, Chevre for its durability/texture). Shell cordovan is a great choice for wallets, but very pricey because it comes from horse butt. Singapore also has access to some pretty good crocodile tanneries (I believe Hermes bought over one of those tannery), so exotic leather is also readily available (but also incredibly expensive). But again, what you pay is what you get. Don't get offended when you hear the prices of such wallets - hear how each wallet is made and how much the raw material costs too!