Red Sub 1680 Movement

[ranchu8888]

Hi all,

Newbie here. Hope to get some advice from the experts here.

Has this red sub 1680 been fitted with 1560 movement ? I saw this before and check that it only fitted with 1575 movement.

Thanks.

[SLS]

I have seen a 1680 with a 1570/5 movement, meaning it is printed "1570" on the lower bridge, but it is actually cal 1575 since it has the date feature. I have not seen a 1680 with a cal 1560? IMO, it could be one of two scenarios, one went sent in for service, the watchmaker swapped out the bridge from another movement, in this case a 1560 to save time/money or two, the watch is a put together Do you trust the seller?
Scott

[mike]

Scott has given some excellent advice.

[ranchu8888]

To play safe, i presume RSC will not certify this watch upon brining to them.

Thanks all for your advice.

[SLS]

That depends on the RSC...the US based one will not! I would be more inclined to find out the service history (if at all possible) first. If not, I would contact a watchmaker who is familiar with Rolex and have it checked out there first.
Scott

[ranchu8888]

Hi Scott,

Another question.

If the watch was not fitted with the correct movement (both dial and movement are genuine), will RSC highlight it out to us or state in the invoice when we send them for authentication at RSC ?

Thanks.

[Tools]

I believe that the 1560 became the 1570 when Rolex re-numbered their movements..

It is very possible that 1560 stamped bridges were used until depleted when necesssary.

[ranchu8888]

Oh, I see and that's interesting.


That's for your info, Tools.

[dodyj27]

The question is, is the movement actually "1560" or "1575 with 1560 signed bridge".

There is a big difference between both movement.

If you can post a picture, we can tell you for sure.

[SLS]

Originally Posted by Tools

I believe that the 1560 became the 1570 when Rolex re-numbered their movements..

It is very possible that 1560 stamped bridges were used until depleted when necesssary.

What is the serial # of the watch? Is it a Red Sub? Is the watch hacking or non hacking? I would guess for the above to be true, that it would have to be an early serial 1680.
Scott

[dodyj27]

1680 sub, in my opinion, never came with 1560 movement. It only came with 1575 "1570 marked" movement.

If you look at both 1560 and 1570 movements, they are totally different. 1560 movement has an alternation of 18,000 while the 1570 or 1575 has an alternation of 19,800, which means the second hand in 1570 movement sweeps smoother than the ones equipped with 1560.

In my opinion, RSC will never consider 1680 sub with a 1560 movement to be correct.

The difference is not only in the alternation number, even if you just look at both movement and compare, so many things to notice starting with balance stud. Compare and you will see :)

[bagel]

Originally Posted by ranchu8888

Hi all,

Newbie here. Hope to get some advice from the experts here.

Has this red sub 1680 been fitted with 1560 movement ? I saw this before and check that it only fitted with 1575 movement.

Thanks.

I don't think 1680 sub has ever fitted with 1560 movement.

[ranchu8888]

hopefully, i can loan the watch to snap its pciture and post it here...

Thanks for all feedback

[snow_rocks]

Sub 1680 never came with the butterfly rotor 1560. 1560 was in the early Explorers.

[Brent87st]

There is a big difference between both movement.

If you can post a picture, we can tell you for sure.

[Chaysen]

Hi guys, I have a rolex 1680 submariner 3.3 million’s serial inside the watch is an 1560 Calibre. To continue the thread does anyone have an 1560 inside too?

[TuRo]

Not seen one ever - This by MW is useful:

Cal 1530 is the base movement for all 1500 movements and was introduced 1957. The 1530 comes with balance assembly rolex p/n 7855 with Breguet hairspring running at 18000 bph.
It is a chronometer grade movement.

The 1520 was introduced in 1963 with balance assembly rolex p/n 8055 with a flat hairspring. It comes in 17 and 26 jewel versions running at 19800 bph.
Cal 1525 is the same thing with date...used mostly in AK date watches etc.
They are not considered to be chronometer grade movements although most will keep excellent time.

The 1560 was introduced in 1965* and has rolex p/n 7980 balance assembly with a Breguet hs running at 18000 bph.
Cal 1565 is the same thing with date.
Cal 1565 GMT has date and 24h hand.
All are chronometer grade movements.
note...these movements have a guard pin to keep the hairspring from getting tangled up when smacked or dropped
(it looks like a curb feeler)

The 1570 was introduced in 1965 and has balance assembly rolex p/n 8106 with Breguet hs running at 19800 bph.
Cal 1575 was the same thing with date.
Cal 1575 GMT has date and 24h hand.
All are chronometer grade movements.
Many date and GMT movements are stamped 1570. I have a 1603 that I bought new in 1972 (manufactured I70) and it has a 1570 autowind plate on it. The watch has been in my posession since new so nothing has been changed.
Matter of fact...all my (1570/1575) date movements including a late 1970s GMT have 1570 autowind plates.

[Dan S]

Originally Posted by Chaysen

Hi guys, I have a rolex 1680 submariner 3.3 million’s serial inside the watch is an 1560 Calibre. To continue the thread does anyone have an 1560 inside too?

Hopefully you read the entire thread. Bridges are often replaced on these movements.

[Chaysen]

I have been searching it the movement seems to be a 1560.
Not a replacement bridge done as suggest from above.

https://ibb.co/jGvGLT4
https://ibb.co/qxM2CXQ

[Dan S]

Originally Posted by Chaysen

I have been searching it the movement seems to be a 1560.
Not a replacement bridge done as suggest from above.

https://ibb.co/jGvGLT4
https://ibb.co/qxM2CXQ

I won't click on your links, but if you are certain that it's actually a 1560, I think the comments in the thread are pretty clear on the subject. If you search, you can also find other threads on the topic, and the comments are pretty consistent.