Lets say a Gold Rolex was case was 100 grams (no idea how much is actually weighs but doesn't really matter). Platinum being 40% heavier than 18K gold would mean the case is 140grams.
Rolex platinum is 95% pure there for 133g of platinum used.
Rolex gold is 75% pure therefore 75g of gold used.
Don't get me wrong I still don't think the mark-up is worth it but it is what it is.
A gold Sub contains about $5k or so worth of gold yet it is probably $25k more expensive than a SS sub making the mark-up huge. No point even trying to put logic to it.
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