I鈥檓 generally not big on, or into, original straps for watches, but having recently discovered Ali Express I have indulged my inner glutton with Epsom leather watch straps.
Searching for the right bracelet for this 1970 Longines, I lashed out on an Ali Express bracelet that set me back 拢8.00 (including tax and postage). It feels like it will last but, if it doesn鈥檛, I鈥檓 prepared to take the hit 馃槈
You could go for the curved end link style as these possibly better match that case style.
Example that I recently purchased off AliExpress.
How did you verify the signature?
Well I bought this book without any mentioning of the signature. On eBay you can find books with some kind of verification of the signature in it and to me it looks very much the same (even same paint marker). So no proof but for me it's real 馃榾