Do no brands have working callipers?
Hi everyone hope your having a great morning, or afternoon, or whatever. Have you noticed that very rarely will a brands stated measurements actually march up to the ones that the reviewer measures it at? Why is that? Ok, ciao
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Adam
Far have I travelled and much have I seen Goodison, Anfield are places I've been Maine Road, Old Trafford still echo to the sound Of the boys in red from the City Ground
Nottingham, UK
Member since
Last active: 4 days ago
15.24 cm
I don't believe measuring instruments at the consumer level are necessarily very accurate. I would bet there could be a 10-15% difference between the extremes of manufacturing tolerances in calipers or any other low cost measuring instrument. On a 40mm watch that's ~0.5mm. I find most measurements to fall within this range. I have nothing to back this up except this is how it seems to me. And of course some of the discrepancy is deceptive advertising. Ciao!
Precise measurements aren't really needed for the consumer provided the margin of error is <.5mm. Replacement of crystals is when it needs to be as precise as possible for both the crystal and the case.
I don't believe measuring instruments at the consumer level are necessarily very accurate. I would bet there could be a 10-15% difference between the extremes of manufacturing tolerances in calipers or any other low cost measuring instrument. On a 40mm watch that's ~0.5mm. I find most measurements to fall within this range. I have nothing to back this up except this is how it seems to me. And of course some of the discrepancy is deceptive advertising. Ciao!
Yes you are right. The engineering tolerances are probably what's making slight discrepancies. On a watch case that is not fit critical, i.e. a tolerance or interference fit, it would probably be +/- 0.25mm. If you combine that with poor measuring equipment then the error could seem worse. Mitutoyo make engineering workshop grade instruments, but at a cost. Used to be a Quality Assurance Engineer so sorry for the borefest.