Anyone here has Valjoux 7750 based timepiece?

[duke4c]

I can get Tissot auto chrono for 700. Is Valjoux worth this money?

Any long term problems with this movement?

Is it hand widable and hackable?

Thanks all for answers.

[Radio_Daze]

700 what?

[KenC]

I can get Tissot auto chrono for 700. Is Valjoux worth this money?

Any long term problems with this movement?

Is it hand widable and hackable?

Thanks all for answers.

$700USD? Model? New? Preowned? Condition? Tissot is a fine quality manufacturer. The Valjox 7750 is a great chronograph movement. Price varies according to brand name...you might want to do some research of the BNIB street price for whatever model you are talking about...You can spend a lot more for a V7750 based watch...and a lot less!

[duke4c]

upsy daisy... US funds... sorry...

http://www.google.com/products?q=tis...um=1&scoring=p

[yamahaki]

I have 12 with the valjoux 7750. No issues with 11 of them. One has a problem but still keeps great time. Kens right though on prices. there are swiss armys with that movement new for 400.00 hamiliton has one, 389.00
accutron is around 500.00 etc.

[duke4c]

poked around ... found hammy for 600, accruton lowest I found was 900 ... tissot floats around 600... tought choice... had no luck whatsoever with swiss army at price point you mentioned...

So far Hamilton Khaki and Tissot are my favs.

By the way I presume that this one is hackable and hand vindable? right?

Also, you mention that you have 11 of those... how's accuracty? 10-20 sec /day would probably be fine for me.

How often do you have to service these and how much is the average price?

Any probs with parts in USA / CAN if need be?

Cheers and thans for all the answers.

[Radio_Daze]

I picked up this Hamilton on eBay for $380US. I also have the Hamilton X-Wind which cost me $600US. They are both great Watches and keep excellent time, within 5 secs or less per day.

The movement is hand windable and also hacking.

[obsidian]

poked around ... found hammy for 600, accruton lowest I found was 900 ... tissot floats around 600... tought choice... had no luck whatsoever with swiss army at price point you mentioned...

So far Hamilton Khaki and Tissot are my favs.

By the way I presume that this one is hackable and hand vindable? right?

Also, you mention that you have 11 of those... how's accuracty? 10-20 sec /day would probably be fine for me.

How often do you have to service these and how much is the average price?

Any probs with parts in USA / CAN if need be?

Cheers and thans for all the answers.

I have a number of Valjoux7750's. Watches with this movement can range from under $400 to over $2000-- it all depends on how they're dressed up and housed. I believe the bare movement costs about $378.

A reliable movement, that both hacks and hand winds, it's accuracy depends on how much effort the watch company puts into calibrating it. Most of mine are under 4 sec./day.

The usual Swiss line is that maintenance should be every 3-5 years, but unless it's your main watch or goes through a lot of abuse, they can go much longer than that without an overhaul. The Valjoux 7750 is the most ubiquitous automatic chronograph movement in use today. Any competent watchmaker, the world over, will have the parts and training to work on them.

One cool thing about Valjoux's is the famed "Valjoux wobble". Hard to describe, you really have to feel it yourself. The movements have very large, heavy rotors for the automatic winding. These only wind in one direction, and spin easily and freely in the other. When wearing the watch (or even just holding it in the palm of your hand), if you make a sharp sideways movement that sets the rotor spinning, it's momentum and weight, as is spins inside the case, will cause the watch to oscillate or wobble on your wrist as if it had a life of it's own! A very cool and odd sensation!
Here are some of mine:

[KenC]

I have Hamilton, Chase-Durer, Stovard-Jurgenson, Mink, Victorinox SA and Movado...I would have to say that Hamilton is my favorite!

[Docrwm]

Produced by ETA (Swatch Group) since 1973 the 7750 has a number of variants, including the automatic (7750) or manual wind (7760). They exhibit integrated construction, 28,800 bph, 30 mm diameter, 7.9 mm height, 25 jewels (older version had 17), 50 h power-reserve, and a cam/lever design. The 7750 is the most common automatic chronograph movement used today. The movement can be dressed up and it can also be refined and calibrated to COSC standards.

My review of my Mido with a "Top" grade 7750 can be found here:
Mido Multifort Automatic Chronograph - By Docrwm

The "normal" 7750 layout of the dial:


Here is a pic of a base Val7750 Movement (please note the 5 ball bearings in the rotor hub - the Chinese knockoff has LOTS of bbs typically):


This one can be purchased from one of the supply houses for $315:


Here is the 7760 manual wind version:


And the 7750 minus its rotor (Omega 1151 variant of the 7750):


And here it is stripped down to its 75 component parts:

1. The Barrel.

2. The Rotor Bearing.

3. 3rd Wheel.

4. 4th Wheel.

5. The Minute & Hour Recording Wheel.

6. The Seconds Recording Wheel.

http://www.timeservices.co.uk/repairs/overhaul.html




As has been stated here, many brands use the Eta supplied 7750. Some dress them up and others do not. Most are base movements with little to distinguish them and others are elaborately cosmetically altered. Some have upgrades like enhanced springs and others are stock movements.

Here is a Breitling that has little to distinguish itself from a stock movement (note - this is an older 17j version found in this WUS Thread forums.watchuseek.com/showthread.php?t=13334):


A movement with cosmetic modifications:


A Zeno from another angle:

and another with fewer cosmetic improvements:


Another with even more cosmetic modifications, including: skeletonized rotor, blued-steel screws, and completely hand-engraved movement.



You can even by a Panerai with a modified 7750! This is a Valjoux 7750 with the chrono modules removed, thus producing an auto with sub-seconds at 9. This has 21j as opposed to the stock 7750 chrono with 25j.



Here is a pic of my Mido that has a "Top" grade movement in it with loads of upgrades.