Help to ID parts from IWC Ocean 2000 / Bund

I am looking for help from anyone with watchmaking experience of the Ocean 2000 / Ocean Bund.

I have some very small parts in a small bag labelled R3314 tubes, which I am pretty sure refers to the quartz version of the IWC Ocean Bund. This would make sense as they came with some other Ocean Bund parts. In this bag are four long solid pins with a pinched profile at one end, and four matching shorter pins with the same pinched profile. The longer ones are 13.56mm long and 0.92mm diameter, and the shorter ones 10.00mm long and 0.92mm diameter. Both types are a little wider across the pinched section at 1.06mm.

In addition to this there are a handful of small pin/spring assemblies. These are 1.17 mm in diameter and approximately 5mm long when the spring is in its relaxed position. I have tried to zoom in to show this in detail but it's not easy with a loupe and an iPad !

It seems most likely these are bracelet components, or maybe something specific to the Velcro strap assembly in the Bund version, but I can't find a clear answer anywhere. It is made harder by the fact there are 3 generations of bracelet all with different designs. Does anyone here with experience of the Ocean 2000 know what any of these components are ?

I'm pretty sure the tubes are bracelet parts but I don't know which model.
The little spring loaded device looks like the click lock that goes under the rotating bezel.

Thanks for the feedback Mark. I spoke with another expert (KK) who thinks the sprung pins are probably from the gen 1 and gen 2 Ocean 2000 bracelets. Will send him some to confirm if that's the case. The other pins were a mystery for him.

I spy a sprung pin in your bottom photo !

Can you say exactly which bracelet generation(s) they are for ?

I think first gen and second gen, but I am not sure if they use a pin with the same dimensions. Your bottom picture is second gen, right ?

Then the longer pins with the pinched section are still a mystery (they don't match anything with the third gen bracelet in your top picture). Maybe they are related to the fabric/velco strap used on the Ocean Bunds (?). Do you know if the connection for that used this kind of pin, or you have an imagine of that strap type stripped down ?

Even if you can't advise further, that bottom picture has been a great help... THANKS !

Well, that silver pin is for gen. two.

Usually the sleeves for gen. three/four do not have that pinched section.

So, I doubt that those are Ocean parts ?!

The bracelets for Ocean and Ocean BUND are identical, only one link of the BUND bracelet hat an engraved supply number.