mhoutman
·I suspect that STZ006410 11 HJD refers to the whole strap, not just the buckle as my RM buckle is marked STZ006410 11 JJD on the strap and STZ006399 11 JJD for the beige NATO.
I think we can partly agree on the parts number, but this is on the buckle on the Speedy Trilogy dark brown leather strap. On leather you must have the same as it I probably 16 mm. NATO is wider
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