2 watch, same individual number?

pike409 · Aug 12, 2025

3308-1 819
3308-2 819

first 4 digits are reference number
5th digit: is the iteration
last 3 digits: individual number is the unique number assigned to the watch for an order

So can it be that these two watches are ordered at the same time?

Canuck · Aug 12, 2025

Those numbers don’t appear to be serial numbers, but perhaps a model #. Check the serial numbers on the movements.

padders · Aug 12, 2025

They aren’t the same individual number though. Examples that left the production line together would have the same iteration number (barring the last and first of each I guess). As above the serial will tell more. These watches could be years apart.

pike409 · Aug 13, 2025

padders
They aren’t the same individual number though. Examples that left the production line together would have the same iteration number (barring the last and first of each I guess). As above the serial will tell more. These watches could be years apart.

Serials are from the same year 11647560 and 11731987 the dial is actually different. I dont understand what the iteration number means.

padders · Aug 13, 2025

pike409
Serials are from the same year 11647560 and 11731987 the dial is actually different. I dont understand what the iteration number means.

It represents some change known usually only to the factory, perhaps a design change or change in supplier for the case or other components. In Omega circles it doesn’t usually have a bearing on the dial design, though it can on some models like the Speedmaster. This is a Longines so there may not be a direct carry across but be aware that the early 50s Omega model 2577 (made for around 7 years) had at least 22 iterations and there isn’t a discernible pattern as to why. 2 fat lug Seamasters with the same iteration can have totally different dials. Perhaps they made a batch of watches and then moved onto another style and incremented the iteration for each batch.