The Narikaa PO is a great value for the money. Excellent quality watch with great fit and finish for a very reasonable sum in exchange. Some small flaws and inaccuracies, but overall a very solid product. At this price point, it is very hard to beat!
If you're after a 45mm PO, you may want to search under uPO, which is an acronym for 'Ultimate Planet Ocean'. These are the top of the line for the 45mm, and are also a good starting point. Several members have modified their watches with gen parts; everything from crystals, dials, hands, crowns, tubes, etc. This is a watch you can expand upon.
The 42mm 4th generation is the model I chose- My wrists are not very large, so the smaller case wears more comfortably than the 45mm for me. The 4th generation has a good number of the small details correct, like size and placement of the He valve, correct case size, and the ability to accept gen parts. However, things like the dial, hands, bezel, etc are all candidates for improvement. With this in mind, I modified mine with genuine hands, dial, bezel complete, ETA 2892 datewheel, genuine bracelet, etc. The end product is a very accurate PO, but the cost at this point is encroaching on pre-owned gen territory. I cut my project off at the 60% mark of what gen would cost on the secondary market; any more than that, and I just can't justify the cost.
@P4- Thanks for the kind words buddy
Cheers!
//ubi