Difference between 168.005 and 167.005 crystals?

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Hi there,

just wondering if anyone can explain the differences between the PZ5014 and PZ5015 crystals. The 15 is for the 168.005 and the 14 for the non date version (167.005). I know that both are 30.6mm diameter, but if anyone knows the height for each pls let me know - and also why they are different! Wondering if someone like @Archer might be able to help? Cheers!
Edited:
 
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Anyone have any idea about this? My main question is why there’s a different crystal for the refs in the first place when they use the same case.
Thanks!
 
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I wonder if since the 168 has a calendar, it would have a magnifying cyclops while the 167 does not have a calendar and would have no magnification. If you hate the cyclops, as some do, you could use the 167 crystal in the 168.
 
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Cyclops version is identified by the L at the end of the part number. Single “L” is for date, “LL” is for day & date. There must be another difference between the two crystals mentioned above.
 
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So do you have any idea if they are interchangeable?
 
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063PZ5014 | GLASS PLEXI ST RING D30.62 H5

063PZ5015 | GLASS PLEXI ST RING D30.62 H5.5
 
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063PZ5014 | GLASS PLEXI ST RING D30.62 H5

063PZ5015 | GLASS PLEXI ST RING D30.62 H5.5
Thanks. So it seems that the date version will fit on the non date, but not the other way round (due to the clearance)