1675 Caseback

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Cozmopak

·Dec 13, 2019

Would a caseback with serial iii.70 be period-appropriate for a 1675 with serial 3,100,xxx?

 

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leefowler

·Dec 13, 2019

I would say no it is to early is what I meant to say! Sorry for the confusion!

Edited: Dec 14, 2019

 

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Dan S

·Dec 13, 2019

I'll give the opposite opinion. The caseback seems a bit too early for my comfort level. @leefowler's is more plausible.

If you want to do some research to make a more informed opinion, go through the HQ Milton archives and make a spreadsheet of the serial numbers from that general era and the case-back dates. I imagine you can easily gather dozens of examples.

 

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Cozmopak

·Dec 13, 2019

Thanks, got a very informative spreadsheet from Springer on rolexforums. He is a wealth of knowledge.

 

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Dan S

·Dec 13, 2019

Cozmopak

Thanks, got a very informative spreadsheet from Springer on rolexforums. He is a wealth of knowledge.

Nobody knows more about GMT-Masters than Springer IMO. I once found a chart with a scatter plot of serial numbers vs. case-back stamps (for Rolex in general, not just GMTs), but I failed to bookmark or save it, and I can't locate it any more.

 

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Cozmopak

·Dec 13, 2019

Dan S

Nobody knows more about GMT-Masters than Springer IMO. I once found a chart with a scatter plot of serial numbers vs. case-back stamps (for Rolex in general, not just GMTs), but I failed to bookmark or save it, and I can't locate it any more.

https://www.gmtforum.com/viewtopic.php?f=3&t=17

 

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Dan S

·Dec 13, 2019

Cozmopak

https://www.gmtforum.com/viewtopic.php?f=3&t=17

Thanks, I know that one. I am talking about a chart associated with a massive data-set.