In 2003 a fellow WIS launched a very good idea for objectivating the level of finish. I particularly like that [ideal] since it avoids the mine field of brand and type of engine completely. It simply measures the quality of finish. Since that is a factor húgely governed by the law of deminishing returns, it is of great value to weigh the price and escalon in the market. Every next step to perfection costs disproportionately more than the previous. Everey next step is less perfection more value for the unit of money. How this is weíghed by an individual buyer is totally not the point and avoided by the standard. It just gives the level of perfection
Johannes Schöön uses the magnification at which imperfection in finish/manufacture become visible as a standard for comparison:
0 is visible with the naked eye (20/20 vision).
The maximum is 10, which corresponds with the diamond industry standard of perfection, meaning that 10+ = not visible at 10x = deemed ´perfect´.
Maybe for watches a larger magnification is needed and that is obviously no problem. Just skip the 10+ and add any number. If it takes 20x to make the pixels/resolution of a display/dial visible then 20 it is. The method, standard remains the same.
This means we have the very flexible SLoP standard to objectively compare the level of quality of finish and maufacture of watches. We can compare the level of finish of a Ventura Kappa with a Seiko EPD with a Casio G-shcock. That of a Pulsar Px with a Hamilton MiBII or a Hamilton Pulsomatic.
Ditto the Grand Seiko with a Seiko Spirit with a Seiko Sport. Ditto a Rolex sub with a Citizen Chronomaster, a Ventura Sigma, Seiko EPD, Vostok Amphibian, or whatever. It is a criterium that can be used for ALL watches regardless of niche or type of disply or type of engine. If the E-ink pixels of an EPD watch need 20x magnification to show imperfection, then that is 10+ (or 20) and that cán be, diréctly, compaired with say 5 or 8 or 15 or 30 or whatever of a Rolex dial/hands. No more ´I prefer the...´ nor ´In my opinion the quaility is...´ as the only foundations telling nobody anything about the watch but only about the wis writing.
An observation that a Synchonar case is 0, that of a Seiko SBPG is 5 and a Seiko SDGA is 8 (or 10+ or ....) is a factual comparative measure on which we can báse a choice or opinion. We cán now objectively compare a Grand Seiko with a Spirit; the SLoP does not interprete which level is worth what to whom. If one wants level 10 and is prepaired to pay 100 times more because that is dictated cost by the law of deminishing returns, then thát is personal choice. The fact that the level is 1, 5 or 10 is fact.