69st Speedmaster with external serial on caseback

Dms5150

Wondering if anyone can offer some insight into this Speedmaster 69st with a 5 digit serial on the caseback.

The number doesn't relate to the movement number at all. I've seen a couple of others with a similar looking 5 digit serial. Do you think it could be military related?

Thanks!

watchyouwant

How military related?

Seaborg

Watchmaker inscriptions ?

zwjk

I would hazard a guess at a retailer’s stock number.

Have you received an extract for this watch?

Vintagewtchzilla

.... because it would then have infinite value

Dms5150

Ha! Just mention because some mil watches have extra serials engraved on the back. A long shot for sure though! Some kind of stock number system makes sense.

padders

Clearly Buzz’s watch. The good news, it’s worth twelvety million dollars. The bad news, you are going to jail.

zwjk

I would hazard a guess at a retailer’s stock number.

Have you received an extract for this watch?

Dms5150

Wondering if anyone can offer some insight into this Speedmaster 69st with a 5 digit serial on the caseback.

The number doesn't relate to the movement number at all. I've seen a couple of others with a similar looking 5 digit serial. Do you think it could be military related?

Thanks!

Dms5150

Wondering if anyone can offer some insight into this Speedmaster 69st with a 5 digit serial on the caseback.

The number doesn't relate to the movement number at all. I've seen a couple of others with a similar looking 5 digit serial. Do you think it could be military related?

Thanks!