The AP questions thread (All the questions you want to ask about AP but were afraid to)

[legend]

Is there any ap rep dial that even comes close? Because rhe ones I've seen so far are way off. Also, as a previous post suggested, are there any that you consider nwbig or super rep, without any modifications?

I personally find the rep ROO dials acceptable out of the box, visually speaking and without loupe comparison. The diver dials aren't bad too, and for these 2 series, the dials will not be call-outs in real life.
For RO dials, they are a different kettle of fish given the texture and finish and why many members opt to swap the gen dials in. The beauty of the royal oak lies in the dial: clean, immaculately finished, and representative of the AP DNA.
I do consider the ZF diver, the XF FC diver, and the ZF blue 15500 (latest iteration) NWBIG out of the box if you are looking for visual accuracy on the wrist.
I am personally very glad to see the clone movements for APs being developed and more people getting to enjoy the AP reps at a higher level. Yes of course rep is rep and gen is gen, but if we are getting more accurate AP reps from the factory, it is a superb direction our game is heading toward.

 

[Teamjlf]

Great thread…
Legend I’m sure this has been discussed before but what the heck I’ll ask it here.

What is the general charge to get an A7750 sec@12 movement tefloned and have the Swiss mainspring added to make it a “bit” more reliable.

I have an AP ROO Dark knight incoming and would like to explore this option more with some expert advice and costs.

Much appreciated to all….

 

[legend]

Great thread…
Legend I’m sure this has been discussed before but what the heck I’ll ask it here.

What is the general charge to get an A7750 sec@12 movement tefloned and have the Swiss mainspring added to make it a “bit” more reliable.
I have an AP ROO Dark knight incoming and would like to explore this option more with some expert advice and costs.

Much appreciated to all….

Different modders have different rates, so if you wish to know the rate offered by a specific person please PM him direct.

The teflon coat is applied to the appropriate areas in the movement to reduce the friction between the gears, and the swiss mainspring presents a stronger alternative to the stock asian one.
Just 2 points to note please

1. Both mods should be done in conjunction with a movement overhaul and regulation for best results and
2. The design of the movement will naturally not be improved by the mods. The 2 mods serve to mitigate the precarious nature of the 7750 sec@12 movement. I will personally peg the improvement to be around 30-50% if I am to put a number to the 2 mods + a movement service being done collectively to the watch.

 

[g00n]

Quick question:
Are rubber straps on the JF models Roo 44mm, Roo 42mm and Divers interchangeable without modification? For Diver to include ZF model also.

 

[QueTip]

Quick question:
Are rubber straps on the JF models Roo 44mm, Roo 42mm and Divers interchangeable without modification? For Diver to include ZF model also.

No. 42mm straps fit throughout models (i.e. JF) but 44mm straps will not fit a 42mm and vice versa.

 

[Albiful]

A question for gen owners:
how accurate are AP 2121 movements? When I started getting into watches, I was surprised to find out that no certification (e.g. COSC) is mentioned by AP.
After all, we're talking about the most famous caliber from one of the "Holy Trinity" manifacturers

 

[Nono92]

A question for gen owners:
how accurate are AP 2121 movements? When I started getting into watches, I was surprised to find out that no certification (e.g. COSC) is mentioned by AP.
After all, we're talking about the most famous caliber from one of the "Holy Trinity" manifacturers

It's what I am wondering for a long time...

 

[legend]

A question for gen owners:
how accurate are AP 2121 movements? When I started getting into watches, I was surprised to find out that no certification (e.g. COSC) is mentioned by AP.
After all, we're talking about the most famous caliber from one of the "Holy Trinity" manifacturers

I assume you are asking about timekeeping accuracy. If so, the accuracy is within 20 seconds per day. It is a vintage movement and COSC shouldn’t be expected.

 

[gilrob]

As far as I know the AP 2121 is well- known for its thinness, that's about it. As far as being COSC certified, the absence of a second hand could have prevented it from COSC certification. The cumbersome method of changing the calendar date did not help in it's practicality either.

 

[Erinoush]

As far as I know the AP 2121 is well- known for its thinness, that's about it. As far as being COSC certified, the absence of a second hand could have prevented it from COSC certification. The cumbersome method of changing the calendar date did not help in it's practicality either.

I am not sure if the comparison makes sense as i am not a movement expert.
My Ap is 5 years old and my 5512 from the 60ies with a 1530 (Serviced two years ago), between the two, the AP is more accurate... For comparison with a more modern movement from Rolex, my recent 114060 (2020) was super accurate.......

That said, i believe the accuracy is not better than 10s per day

 

[Teamjlf]

With the JF AP ROO Dark knight - I’ve seen it mentioned as V2. Was there a V1 ? What are the differences ?
Also I see the case back has a numbering system J****

Is this entirely random or is it an actual sequence to determine some sort build date or sequence ?

 

[legend]

With the JF AP ROO Dark knight - I’ve seen it mentioned as V2. Was there a V1 ? What are the differences ?
Also I see the case back has a numbering system J****

Is this entirely random or is it an actual sequence to determine some sort build date or sequence ?

The main difference would be the cyclop and datewheel update.
The Dark Knight in the gen are either J, K or random alphanumeric serials. They give an approximation on the production batch in the gens and in reps, these are meaningless and just replication of the gen serials.

 

[Teamjlf]

The main difference would be the cyclop and datewheel update.
The Dark Knight in the gen are either J, K or random alphanumeric serials. They give an approximation on the production batch in the gens and in reps, these are meaningless and just replication of the gen serials.

Thank you for you kind response.

Regarding the cyclops and date wheel update. Could you elaborate. I’ve searched to avoid duplicating too many questions here but can’t seem to validate or find a comparison.

 

[legend]

Thank you for you kind response.

Regarding the cyclops and date wheel update. Could you elaborate. I’ve searched to avoid duplicating too many questions here but can’t seem to validate or find a comparison.

I think my answer was clear enough. The V2 was updated with the datewheel and cyclop to look more accurate. I do not find it meaningful to describe the detail differences between the two.
If you want, you can just google "JF AP ROO" and add variations of V1 and V2 and see the difference for yourself. Expand the search beyond RWI. What you see will be a lot more meaningful than what I can describe.

 

[Nono92]

Hi,
What do you think about this AP diver : https://trustytimewatch88.io/index.php?main_page=product_info&cPath=241_288&products_id=24316 ? There is another one from BF for this model... Is the difference of price due to a difference of reliability or to the accuracy of details (or both maybe) ?
Do you think it is better than an AP from U1 factory for example (seen around 150 $ on other websites) ? Many thanks.

 

[legend]

Hi,
What do you think about this AP diver : https://trustytimewatch88.io/index.php?main_page=product_info&cPath=241_288&products_id=24316 ? There is another one from BF for this model... Is the difference of price due to a difference of reliability or to the accuracy of details (or both maybe) ?
Do you think it is better than an AP from U1 factory for example (seen around 150 $ on other websites) ? Many thanks.

I think that for $238, it does not look bad. One thing though, is that the cal 4308 used in the gen 15720 series beats at 28800bph and no longer 21600bph, the frequency of the cal.3120.
So the maker is being ignorant in their movement claim. It is a passable piece visually for me.

 

[Nono92]

So, it will be between the U1 and the BF ? ???? The fluidity of the second hand is necessary better at 28800 bph...

 

[legend]

So, it will be between the U1 and the BF ? ???? The fluidity of the second hand is necessary better at 28800 bph...

Honestly, I am unfamiliar with the 15720 gen and rep differences. Personally I am not a fan of the model, and passed up buying the green dial gen earlier this year when offered by the boutique.
As with all things, different strokes for different folks. I hope you enjoy whatever you choose eventually.

 

[Nono92]

Honestly, I am unfamiliar with the 15720 gen and rep differences. Personally I am not a fan of the model, and passed up buying the green dial gen earlier this year when offered by the boutique.
As with all things, different strokes for different folks. I hope you enjoy whatever you choose eventually.

Finally I will turn to a 26XXX offshore chrono... More symmetrical than the 15720 because there is no second crown. I went on the M2M section and read that the movement was sometimes replaced... Would it be possible to replace later the modded asian 7750 by another one with a DD module ? Thanks.

 

[Nono92]

Sorry, I meant : would it be possible to replace the modded asian 7750 by a 9015 (or something like that) with a DD module ?