I no longer have the watch and its accessories

Unfortunately not, it's the first generation.

Unfortunately, this item is sold out with us and we have no information on if or when it will be available again.

Yes. Is compatible with any OPPO

Min. 150mm / Max. 205mm

Unfortunately, Digitec itself will not give you an answer. However, it's worth checking back from time to time, as Digitec updates its prices very frequently (up and down).

Unfortunately, we do not have any information on this. It is best to contact the manufacturer directly: https://support.oppo.com/chde/email-us/