Hello everyone,
I have a 1957 Cal. 852 that has quickly become the jewel of my watch collection. I genuinely consider it a perfect watch; I can't believe they aren't worth double what people are charging. My watch;

It was an absolute bargain at $1160USD. I'm not sure I can say the same for its accessories though..
From what I can tell from researching old forum posts, the correct box should be dark green with a slightly rounded clamshell shape and the cursive logo on the inside of the lid. I can't find any recent sold listings of this style box online, but there are two listed for sale; one is a Hong Kong-based seller on eBay asking $700! No thank you. Another is from a seller on a local sales page, asking $260. It has been listed for over 6 months with no takers, and they outright refuse negotiations in their description so I suspect they will continue to hold it for the forseeable future at that price.

The most expensive IWC box I could find that successfully sold was about $140 with unsigned warranty papers, though it appeared to be from the late 60s (gold squared-off box with block letter IWC logo.)
Another issue is the buckle; I have no idea what the correct buckle is supposed to look like. The prices also seem to be pretty random online, going anywhere from $50 to several hundred dollars for a 16mm buckle. Most of the complete sets I see online have AM buckles, and a "full set" 1957 cal. 89 I found for sale is in a 1960s box with a new Portofino buckle! I have seen replicas of them on AliExpress, so it may not even be a real incorrect buckle..
Can anyone show me what a genuine box and buckle should look like for a 1957 cal. 852, and roughly how much I should reasonably expect to pay for them? Much appreciated!