A question about movement

[Andsan]

I recently bought a 01-0210-415. It is marked 3019 PHC. 31 jevels. I have seen another 01-0210-415 with 17 jevels.
Why? Year?
I can not find any serial number. Was there no serial numbers on them?
Is there anyone who can determine the age of my watch?
It keeps time very well. + 4 seconds / 24 hours.






Thanks in advance

/Anders

 

[ulackfocus]

There are no serial numbers as I found out a couple months ago.

The 17 jewel El Primeros were meant for the US market to avoid higher import tariffs on any movement over 17 jewels. 31 jewels were standard for the Swiss made models.

 

[ulackfocus]

Oh, and it's from 1973, just before the 1974 order to destroy all the tooling for the El Primero. The IllumZenati call this the Apocalypse.

 

[Andsan]

Many thanks for your information

/Best regards
Anders

 

[LouS]

sounding like an old hand, Dennis!

 

[ulackfocus]

Yeah, I'm a one reference savant.