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Deconstructing the Josh 1655...


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Guest zeleni kukuruz
Posted

@woof

You can't have one!!! Becuse you already have to many sexy girls in your stable :D

Posted

Frank,

Pardon my ignorance, but where are those measurements taken? When I measure the thickness of a case I get 5.1mm.

bottom to glass (w/o cyclop)

Posted

Okay...let's focus on the gen 1675 should be thinner than a modern day sub argument...

Based on my digital calipers total thickness, including case back and crystal...

My gen 16610 13.1mm

my rep 1675 converted from a rep 1:1 1655 is 13.13mm (with modifed flat case back)

According to the Japanese Rolex encylopedia...

The 1675 thickness ranges from 12-13mm

1655 thicnkess ranges from 13mm to 13.5mm

16610 gen thickness ranges from 12.5mm to 13.mm

So the 1655 rep thickness is consistent and within the 1675 gen thickness. Take into consideration that I flattened out the rep 1655 case back to make it look like a 1675 case back, so you will lose about .5mm

What does this mean...we are all barking up the wrong tree...

The 1675 has the SAME thickness as a modern day sub and the assumption that a GMT should be consistently thinner than a modern day sub is incorrect...

Posted

very entertaining boys :)

i just took my 1675 out of the trash and i think RA is right about the case -

1675ultrafertig7ag.jpg

If your trashcan is overflowing and needs a little expansion room - you can send that my way fishing.gif

Posted

I may be wrong, but I think the contention is that the mid-case is thinner on the older GMT, not the entire caseback to crystal measurement. I thought, ever since reading freddy's comparison back on his phase one, that the mid-case was what we were talking about when discussing the thinner case.

Guest zeleni kukuruz
Posted

Yes Joey your right. Just measure the mid-case. Do a measurement on the caseback + mid-case is wrong!!!

Chi, measure your mid-case NOTHING more.

Posted

does is really matter ? ;)

how would you measure the middle case ? the thickness of the lugs ? you would need a NOS gen case to compare.

and there are too many variants over the year to cover them all.

the Josh case is good enough - at least for me.

i don't see the problem in the case thickness - i see the problems in the CG area.

cheers,

Frank

Guest zeleni kukuruz
Posted

Does it matter? For some yes for others no, for me yes!

The fact stil remains the case is too thick it's simple as that.

Cheers ;)

Posted

Continuing on with the GMT versus submariner thickness debate...

Guys...what I'm trying to point out is that a gen 1675 (which I don't have a gen to compare to) is the same thickness (if not thicker) as a modern day sub and a little thicker due to the thickness of the movement. This means that the the overall case is thicker to accomodate the thicker gen GMT movement. Assuming that the case backs are pretty much dished the same to accommodate the rotor depth, then the mid-case would have to be a bit thicker to accomodate the slight thickness differential.

Now comparing this to the 16750 and the 16570...the Japanese Rolex encyclopedia stats indicate that the thickness are on the average of 12mm. So it would only make sense that the 1675 mid-case is thicker than the 16750/16570, which confirms RA pic of his comparo to a gen 16570

From Rolex spec sheets...1575 (GMT) thickness= 6.47mm, 3035=6.35mm.

BTW...The thickness of a mid-case 16610 about 4.7mm...my REP 1655 mid-case is 4.83mm...so consistent from MY point of view, because I don't have a gen 1675 to compare.

In summary and according to what I have in front of me, the 1675 mid-case should technically be as thick if not thicker than any modern day sub and also any successor of the 1675 (except possibly 16760).

Guest zeleni kukuruz
Posted

Chin mate, the 1675 is MUCH thinner then the modern Submariner :wacko: !

I give up here :surrender: !

Posted

z....once again...there is no concrete evidence provided...and all there is heresay...I'm sick of discussing this too... once I buy a gen 1675 (which might be forever, because I am broke!)...we'll reconvene this discussion...or maybe not...over and out

Posted

OK, so who has a genuine 1675 that can measure the mid-case for us? That would solve it all, and give modders the right number to go for.

I know freddy has the mid-case measurement of the gen 6542.

Posted (edited)

wait till monday, I will have a gen 16750 and measure with my palmer the case thickness and show you the difference between a gen 16750 case, which is the same case as the 1675 and the same case as the 1655 -talking gen stuff-

Just to show the rep case tickness difference I have actually a Josh 1655 (1/1...) case stripped and ready for machining for a member,

Also a big article in in progress, unfortunately, I do a lot of things at the same time and I am very busy right now

In fact, I don't know why I insist, anyway the gen 1655/1675/16750 use the same case, any years of production, cases are slim, and the 1655 "1/1" is very far from the real stuff. Period. -for me- :)

Edited by Rolexaddict
Guest zeleni kukuruz
Posted

Phhuuu, thanks for doing this RA.

This will clearly show what we are talking about.

Posted

Thinking about buying the Asian 2813 movement 1655 from Andrew, think it is the same watch as "Josh 1655". Just got into Vintage Rolex with a DRSD and looking to expand collection. Should I pay the difference for the Swiss ETA 2836? Your thoughts appreciated.

Posted

so after reading RAs other post - the (s)thickness is the same ;)

cheers,

Frank

Guest zeleni kukuruz
Posted

The you have to start all over and read again :D

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