A-168 fit. A saga in 3 parts.
I received my A-168 about 3 months ago, and really struggled with the fit. It was either too tight and giving me wrist and hand issues, or it would hang over my hand - no in between.
My first solution was to wear it loose, but with rubber spacers, which helped, but definitely was not a long term solution.
Next, I used some Ali Express coupons to get myself a new watchband, but realised that the endlinks were too thick to fit under the hood (despite the listing stating that it fits the A-168). So I used a bench grinder to take off about 0.5mm all the way around the housing. Fortunately, the new bracelet came with quick release pins, so I could grind and test - nonetheless, this took a good hour to get right (it's 98% there, so need to skim a bit more and then finish it nicely). You can see there are still marks on the band where it meets the watch that need to be finished. The fit was now better, but still not perfect since the new band still didn't have micro adjust (it was more of a risk than a sure shot, so I knew this may not resolve the issue).
Then, I purchased a Watchdives 16mm clasp, with 5 micro adjust holes, and fitted it this morning, and I finally have a comfortable fit.
All in, $70 for the A-168 (I live in South Africa, and that's just the price here); about $5 for the new watch band and about $12 for the Watchdives clasp.
Yes, it's all a bit mad, but that's just the nature of watch collecting - we're all a bit nuts.
Feel free to ask any questions.