Datejust 1600 - Help, please...

[DNN123]

Hi,

Hope someone is kind enough to help me.

I was wondering how collectible the following watch might be: Datejust, model 1600, serial number 183XXXX with ss rivet Oyster bracelet and jumbo crown closure.

What would be a fair value, given that the watch is in good working order and fairly good condition for an item manufactured in the 1960s?

One owner only.

I would be extremely grateful for any feedback.

Thank you.