GMT 16710 Serial Question

[PepsiBezel]

Late-Y serial models do not have lug holes (16710T).

Without papers, the serial number is just an estimate of production. The clasp code may be more accurate (though, obviously, a bracelet is produced separately from a watch, and may be mismatched over time).

[Lord Tomato]

Originally Posted by PepsiBezel

Late-Y serial models do not have lug holes (16710T).

Without papers, the serial number is just an estimate of production. The clasp code may be more accurate (though, obviously, a bracelet is produced separately from a watch, and may be mismatched over time).

Thanks! So everything seems to be in order? I guess all no hole 16710s have SEL? According to Bob's Watches' 16710 guide, the late Y serial was introduced in late 2003 though? Might the production year just be a small listing mistake from the seller?

Clasp code is: 78790A.

[Tools]

Originally Posted by Lord Tomato

. . .

Clasp code is: 78790A.

This isn't the clasp code as we usually use the term. This is the bracelet style, a 78790 (Oyster, brushed with polished sides), with SEL (A)

The clasp code is 3 digits and can be used to fix an approximate date of manfacture.

[watchnwine]

Originally Posted by Tools

This isn't the clasp code as we usually use the term.
The clasp code is 3 digits and can be used to fix an approximate date of manfacture.

The clasp code can be found on the inside of the clasp itself (I need a magnifier with my old eyes) and is likely to be one of the following in your example:

DE
DT
AD

followed by a number. The letter code is the year of production, (DE=2001, DT=2002 and AD=2003) and the number is the month. To put it together, a clasp code of AD7 would indicate that the bracelet was manufactured in July of 2003 and likely paired up with a case that didn't have holes. If the letters are anything else (or an S for service), the bracelet may have been manufactured later.