[seikotone]

Hello, I'm a newbie and this is my first post so forgive me if I get it wrong.
I've collected a few watches for a long time but recently discovered the diversity of Seiko and now I'm hooked.
I particularly like LM's and have two different watches with the same case number and was hoping someone can tell me which has the wrong back.
Watch a is the one with an inscription
watch b is the one without


Tony

 

[Jim W]

Well for me the top one watch A with the inscription is definitely a 5606-8070.

I suppose it is possible (even probable) they both are?

 

[seikotone]

Thank you, 1 definite identification is a step forward.
I thought all different cases had different numbers to enable ordering correct replacement parts. These have different crystals fitted, watch a being flat mineral glass and watch b has a high dome acrylic.
Any more observations will be welcome.

 

[Dutchsiberia]

A quick google images search shows a lot of watches with the top left case, so that one is complete The other one has the wrong caseback. Maybe the tiny numbers on the dial under "6" can solve the mystery?

 

[seikotone]

Just to make life awkward the numbers have almost dissapeared. The 5606- is clear enough (Murphy's Law) but the next ones are not. They appear to be 6 or maybe 8 120
The 5th digit appears to be a 1 although this is more often a letter

 

[seikotone]

I think I've sussed it, after a google search for 5606. It appears to be a 5606-6070 so it deffo has the wrong back fitted.

 

[northdock]

Dial Code for top one is correct NT

NT NT

 

[Dutchsiberia]

you are right, 6070 it is

 

[seikotone]

Thank you for your answers so far
This brings up 2 more questions
1/ Does anyone know the correct dial number for watch b
2/ Has anyone got a spare 6070 back.

 

[Dutchsiberia]

The dial number is usually not super important, they don't match the caseback completely anyway, most of the time.

 

[John_D]

Look on the bright side, you have a nice clean, un-engraved back for the real 5606-8070, if/when you acquire a 6070 back

 

[seikotone]

That thought had already crossed my mind, just a shame it's 2 years later than the other.

 

[ricardopalamino]

Thought I'd Chirp in....

Howzit , ....I saw your post and thought I'd share some pics of a 5606-7050 I picked up at the swap meet today . As you can see , the day and date are separate and the movement is removed through the crystal side . I wasn't sure if I had a 5606 so I figured I would take it and add it to my collection .
As you can also see , the dial was buggered up on the Seiko sign and a couple of marks where someone probably removed the hands and didn't protect the dial ......surprisingly the movement is really clean looking and running great .
I hadn't seen this particular auto winding set-up before....first reverse winding wheel , second reverse winding wheel and other interesting stuff .

 

[seikotone]

Interesting variation, you don't see many with a split display. I have quite a few 5606's and the only one that varies from the norm is a Franken LM with vertical day/date at 6 o clock.