What is a “Hack” movement?

[sherbert79 8]

Hi All

I’m desperate to get a Daytona but have always been worried about the seconds @ 6 issue with the A7750, been doing a lot of research and some posts mention to go with a 21j on this watch but I’ve came across this watch and I’ve noticed it has a hacked movement of an A7750, does this mean the seconds at 6 issue doesn’t happen??

 

http://trustytime.store/index.php?main_page=product_info&cPath=1_6&products_id=16480

 

Thanks

 

Scott

[Nikosaldente 630]

Hack Movement is the movement that when you pull the crown to time setting position, the seconds hand stops moving!

[Tits McGee 7]

Seconds at 6 are known to be "timebombs". Nobody I'm aware of makes a reliable movement.

I'd avoid them at all costs.

[sherbert79 8]

25 minutes ago, Tits McGee said:

Seconds at 6 are known to be "timebombs". Nobody I'm aware of makes a reliable movement.

I'd avoid them at all costs.

Well for the money I would be paying I might just forget the Daytona, unless a 21j is more reliable?

[GenTLe 1,510]

2 hours ago, Tits McGee said:

Seconds at 6 are known to be "timebombs". Nobody I'm aware of makes a reliable movement.

I'd avoid them at all costs.

The movement used in new slim IWC portuguese and also in the ARF daytona (those with non functioning register at 3 and 9) are absolutely fine. The problem of the old ones was the not jeweled transfer gears. There's nothing like that anymore on these ones.

[Tits McGee 7]

1 hour ago, GenTLe said:

The movement used in new slim IWC portuguese and also in the ARF daytona (those with non functioning register at 3 and 9) are absolutely fine. The problem of the old ones was the not jeweled transfer gears. There's nothing like that anymore on these ones.

No more problems with seconds at 6? This is the first I'm hearing about it.

I'd be happy to be wrong but isn't it more or less a cardinal rule to avoid these? 

I don't even buy straight 7750's anymore. I'd rather gamble $380.00 at a casino. I'm just sayin'

[NFleischer 4,355]

The new ARF Daytona does not use a 7750 movement. That's why it's closer to gen in terms of thickness.

Faux chronos are the downside.

[Rx4Time 1,472]

18 minutes ago, NFleischer said:

The new ARF Daytona does not use a 7750 movement. That's why it's closer to gen in terms of thickness.

Faux chronos are the downside.

The ARF uses a 7750 with a transfer module to move the rumning seconds to the 6 o'clock position.  The only chronograph hand which is functioning.   There is a decorative plate to give the appearance of a 4130.  If they had eliminated this it could have been the same thickness as gen.  It's a fairly reliable setup, best overall so far for a Daytona. 

[trailboss99 997]

AFIK all 7750 hack anyway.

 

[10:10 Watch Repair 1]

15 minutes ago, trailboss99 said:

AFIK all 7750 hack anyway.

 

Shall we assume he means "hacked together?"

[trailboss99 997]

Yeah that was kinda my thought as well, sounds like a bit of a hack job. 

[GenTLe 1,510]

6 hours ago, NFleischer said:

The new ARF Daytona does not use a 7750 movement. That's why it's closer to gen in terms of thickness.
Faux chronos are the downside.

Not true: it is basically a 7750, but they don't have the upper transfer gears like in the old thick ones taking the motion from sec at 9: instead they copied from the IWC gen movement and had a pinion taking the sec motion straight from the main gear train to a couple of well jeweled small gears. On RWI there was a disassembly thread showing this, months ago

[trailboss99 997]

5 minutes ago, GenTLe said:

Not true: it is basically a 7750, but they don't have the upper transfer gears like in the old thick ones taking the motion from sec at 9: instead they copied from the IWC gen movement and had a pinion moving the sec motion straight from the main gear train to a couple of well jeweled small gears. On RWI there was a disassembly thread showing this, months ago

Yeah, in the same way as companies such as Breitling do you could call it a new calibre but the base MVT is still a 7750.

[NFleischer 4,355]

Hmm; so the chronos are functional?

[GenTLe 1,510]

1 hour ago, NFleischer said:

Hmm; so the chronos are functional?

On the ARF one? Partially: as I wrote is the same movement used here:

 

So the small seconds at 6 will work, the central big chrono second hand will work, but the subdials at 3 and 9 in the Daytona will be not functional because they simply don't exist in this movement.

[Tits McGee 7]

19 hours ago, sherbert79 said:

Hi All

I’m desperate to get a Daytona but have always been worried about the seconds @ 6 issue with the A7750, been doing a lot of research and some posts mention to go with a 21j on this watch but I’ve came across this watch and I’ve noticed it has a hacked movement of an A7750, does this mean the seconds at 6 issue doesn’t happen??

 

http://trustytime.store/index.php?main_page=product_info&cPath=1_6&products_id=16480

 

Thanks

 

Scott

If I was desperate for a Daytona I'd bypass the reps and go for an Alpha with a Seagull movement. I believe you can find them under $200 new. Just my .02.

[sherbert79 8]

So from what I take from this......if I want a Daytona thats not going to die then I would need to get the seconds at 6 sub dial frozen? Is this an easy job for a watch smith to do? It is strange why such a decent looking watch comes with these issues 

[ssouthall6 4]

So from what I take from this......if I want a Daytona thats not going to die then I would need to get the seconds at 6 sub dial frozen? Is this an easy job for a watch smith to do? It is strange why such a decent looking watch comes with these issues 

No, the seconds at 6 ARF daytona is reliable now as stated above. The old ones were ticking time bombs.

The best daytona out there is the ARF by a long way right now.


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[sherbert79 8]

47 minutes ago, ssouthall6 said:

 

No, the seconds at 6 ARF daytona is reliable now as stated above. The old ones were ticking time bombs.

The best daytona out there is the ARF by a long way right now.


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Thanks for the info, what TD stocks the ARF version?

[ssouthall6 4]

Thanks for the info, what TD stocks the ARF version?

TD's don't keep stock of watches generally. Any TD can get hold of ARF watches, just send them a mail telling them what you want.


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[ssouthall6 4]

Thanks for the info, what TD stocks the ARF version?

TD's don't keep stock of watches generally. Any TD can get hold of ARF watches, just send them a mail telling them what you want.


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[sherbert79 8]

Thanks guys I will have a look for the ARF version and find out what TD can get them, are they much more expensive than a normal movement?

[Robse1 70]

is it true that there will be a full functional chrono movement this year? heard this.... and a ice blue dial ARF would be nice