Rolex Cal 3135 vs Valjoux 7750

[rolexsubdate]

Just wondering if anyone can compare the Valjoux 7750's pros and cons, especially against the Rolex's 3135?

Also, any famous watches out there that carry the Valjoux 7750?
thanK YOU,

[dddrees]

I don't know if you can call it famous but my IWC Pilot Chronograph uses the Valjoux 7750. I know there are a number of other watches that do as well, however how many and how famous they are I wouldn't know.

[Dan Pierce]

Apples and oranges. Both well made and well respected quality movements.
dP

[padi56]

Originally Posted by Dan Pierce

Apples and oranges. Both well made and well respected quality movements.
DP

Have to agree Dan but you cannot compare a Chronograph movement against a movement with just a date feature.While the Valjoux 7750 is a very fine movement and is used as a base in many high end watches.And has a well proved track record over many many years.And if COSC tested it has one of the highest first time pass rates in proportion to movements tested.You could say exactly the same for the Cal 3135 that was first introduced in 1988/9 and has remained basically unchanged except for some now having the in-house escapement parts.The cal 3135 is the base movement for most of the Rolex Oyster line up with or without added complications like day date second timezone etc.So the cal 3135 has again a well proved track record in millions upon millions of Rolex watches over the past 20 plus years.Panerai have been using the Valjoux 7750 for many years but without the chronograph module in many of there watches.And with ETA Valjoux there are mostly 5 grades of movements in there movement line up,there top grade is chronometer grade.

[JIFF1975]

Totally different caibers.

Why would you want to compare these two?

[rolexsubdate]

Originally Posted by JIFF1975

Totally different caibers.

Why would you want to compare these two?

Well, I grew up with the idea that a sub, if properly cared for, can and does outlive its owner. And that's primarily because of the 3135 movement.

Does the Valjoux 7750 watches have a similar reputation?

I understand that Valjoux7750 is a chronograph movement ....

Just wanted to know the reliability and life expectancy of the Valjoux7750...

thanks,

[Dan Pierce]

Originally Posted by rolexsubdate

Well, I grew up with the idea that a sub, if properly cared for, can and does outlive its owner. And that's primarily because of the 3135 movement.

Does the Valjoux 7750 watches have a similar reputation?

I understand that Valjoux7750 is a chronograph movement ....

Just wanted to know the reliability and life expectancy of the Valjoux7750...

thanks,

When well maintained, it should outlast it's many owners.
dP

[Rolex116520]

Maybe compare Valjoux 7750 to Zenith 4030 and on to Rolex 4130 ?

[conrail]

Theres a ton of famous watches out there running the 7750. Breitling uses it in a lot of their 12/6/9 configuration watches, for example Chrono Superocean.

[slcbbrown]

One of the key problems with comparing ETA movements to Rolex is the various grades of ETA movements. With Rolex, you get the only grade they make. The quality level of the movements is basically the same. With ETA's, you don't know what is in your watch, necessarily. You could have a high grade version or lower grade version of the same movement. In many cases you also have the added confusion of unfinished ETA movements bought by watchmakers, who then build the movement to their own quality standards.

I've got two watches with ETA movemets in them (a GP chrono and a ML moonphase), and I can't tell you exactly how those two movements stack up against Rolex. I have faith in GP and ML as brands but have no idea how good the movement was before they tweaked them.

[FLB03TT]

One ergonomic difference between the two is the winding rotor, which on the 7750 sounds like a cement mixer

[buddy13]

Originally Posted by FLB03TT

One ergonomic difference between the two is the winding rotor, which on the 7750 sounds like a cement mixer

that's because it wonds one way, the other it spins freely without obstruction..smae on many Miyota/Citizen movements ....

The 7750 is a well respected workhorse but I believe the in house 3135 movement is a better finished caliber, and due to it's lower complications should outlast a 7750 in theory...just my humble opinion of course...

[Trev]

My new (to me) Seamaster Chronograph 2599.80 has a 7750 (with whatever small tweaks Omega made to it).

Runs consistently -10/day. Originally purchased in 1997, never serviced. Chrono works well.

[mike]

Well, I have multiple examples of both. I wear my watches as they were intended. I don't baby them (nor do I try to abuse them though sometimes events can be...exciting).

I've never had a problem (save regulating both) with either movement. Both are workhorse movements that will take more then you can.

True there are differences -- winding being one, but I don't think one is stronger than the other in practical terms.

Either one will outlast the owner provided proper care.

[Trev]

Originally Posted by mike

True there are differences -- winding being one ...

Care to elaborate on that?

[Dan Pierce]

Originally Posted by Trev

Care to elaborate on that?

The 7750 is known as the "wobble" watch as it's rotor swings freely [and given the right torque, very fast] in one direction and winds in the other.
The 3135 rotor winds in both directions.
dP

[Trev]

Ah, right. Thanks Dan.

The wobble adds character ;)

[Art 1]

Both are excellent. The 7750 is a very tried and true movement used by many high end houses.