Glossary
A scale, usually printed on the bezel or dial edge of a chronograph, that converts elapsed time over a known distance into speed.
Tachymeter scale printing, spacing, and numerals closely follow the reference's original specification, and mismatched fonts, spacing errors, or an incorrect scale range on a bezel are common indicators of an aftermarket or incorrect part. It's a detail worth comparing to genuine reference photography during a case-level check.
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