For all the watch strap masters in the bunch:
I'm looking forward to trying my hand at a replacemnt watch strap for a family member and have decided on 1.2-1.4mm box calf outter with 1.2-1.4mm Zermatt calf liner. I would like to use lin cable thread but would like some guidance on which gauge would be most appropriate. Likewise, I am thinking of using a #9 pricking iron and would be interested in opinions on this as well for the project.
Thanks
I'd go 632 in that size personally. If it was for a dress watch I would consider 832 for something a little finer, but then I would be looking at a smaller 10-12 stitches per inch vs 9.
I would recommend the 832. When doing classy watchstraps, the thinner the thread, the nicest it will look.
But as suggested above, you cannot go wrong with actually trying the thread on a scrap to see the look.
When you say #9 pricking iron, are you referrring to a Blanchard #9? If so, I think that equates rougly to about a 3.0mm pricking iron. In my opinion, I think that would be a good place to start as far as spacing goes. Many people might recomment going with a 2.7mm pricking iron for a watch strap. Either way, I would recommend either the 632 or 832 Lin Cable. You might want to stitch a couple short lines of each to see which look you prefer.
I would probably need to see your idea for the strap, but I was thinking that I would probably recommend a bit thinner Zermatt liner leather.