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JF AP 15400ST Gen vs Rep mini-review (BLUE)

mech500

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6/4/12
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Recently picked up my grail watch, AP 15400ST boutique Blue and thought I’d do a quick gen vs rep mini-review for the community.

I’ve done a few mini gen vs rep reviews in the past, the last one was a Hulk and I recall doing the SD4K prior to that. In all honestly I ain’t that good at spotting gen vs rep micro differences, I just review the overall look and feel and hopefully the pictures help.

Background:
I was in the market for a Nautilus (which had previously been my grail watch for many years) but then I tried on the RO.....and it was GAME OVER for the Patek. The Nautilus is nice (obviously) but the RO has so much more sex appeal. I have owned my fair share of luxury watches but the RO has to be THE most beautiful watch I have ever seen.....and the rep is actually very nice indeed, I am a big fan of JF, as you’re about to see below.

Firstly, please note that I only have access to the internet (and therefore the forum) via my phone (Tapatalk)....so I don’t have the means to do a more in-depth review.

Hopefully my iPhone pics suffice and do excuse the shit grammar....I’m using my phone and it’s a mission to keep concentration whilst typing this up.
Rep(bottom), Gen (top):
da7844fd662cd7bce7fc972b0611b2fe.jpg


Let me know if you want any specific pictures/angles/lighting. I used a £3.50 shitty Amazon lens for the macros. Lol



Summary:
The JF15400v3 is a fantastic rep. Very beautiful and very well finished. You can even stop reading now and just get one, blind buy! It’s hard to believe that the gen costs THAT much more. On the wrist it’s hard, (near impossible) for typical gen owners to tell apart the two watches IMO. Obviously, there are some hardcore members on the rep forums that have the ability to spot a rep from space, but you ain’t gonna run in to the 100 or so of these guys in the real world, all I know, is that the rep is excellent and scary close to gen (on the wrist). My biggest problem with the rep is the thicker case and the not as clear crystal. Everything else I can personally live with....Rep dial is a little dull and doesn’t “pop” like gen. I imagine the dull dial problem is isolated to the blue dial watch, so getting black or white might be the better option for you?

Now, on closer inspection and in the hands, there is NO comparison, the rep doesn’t even capture 40% of gen depth, finish and beauty but it’s completely unfair to compare a £0.27k rep with a £16k gen.

Gen (bottom), Rep (top)
285417dc2be0172cf71925d8b80ac02a.jpg

Rep(left), Gen (right):
3c1e96e8e898298add7f36c743827d3f.jpg


The rep does come highly recommended by myself and others here, it gets lots of compliments and looks stunning on the wrist. It’s big and flash but not in a rude, in your face kinda way, just a very well designed and executed rep. I don’t concern myself with comparing small details on rep vs gen since there are many gen variations and I ain’t interested in finding out about them all. Lol.

Ps. Special thanks to Ken (@psychospike) from chazingtime for hooking me up with a v3 in record time. Thanks mate

Gen (bottom), Rep (top):
d916c11d6a961b6968fa3dacebe9ee2d.jpg

Gen (left), Rep(right):
2491d6535ad933788afafeb7393bbda4.jpg


Dial:
At wrist distance the dials are close. Any difference (at wrist distance) could easily be down to gen batch variations, different angle/lighting/reflections. JF have done a good job with the dial but it’s a little dull and doesn’t pop like gen.
Rep (bottom), Gen (top)
a1c83ddf84f8cc386ad746faf8c91b2c.jpg


See how the rep dial can look a little dull (at certain angles):
Gen(bottom), Rep(top), low lighting:
e84292225e871239e73c3c7c9a0d23fe.jpg


Note: my gen is 2018 model and has updated AP logo at 12oclock. There are many gen batch dial variations so don’t get too hung up over micro analysing gen and rep dial colour differences

I just do a general comparison looking at overall “look and feel” between the two watches.

Gen:
0868326d1a033be54767fb4f08df9fe9.jpg

Rep:
ec5b15a896ed6dae97de780dd880f7f2.jpg

It’s hard to explain but the gen has more depth to it. It’s prettier and the colour is more complex and richer. It just pops better than the rep. I’ll let you compare tapp yourself, I haven’t got the dexterity to micro analyse the differences. The difference are also way to onerous for me to articulate on my phone Tapatalk, lol.
Gen:
fb05b64cd2a9a2ec1dd38cdc34936300.jpg

Rep:
899ef78be9cfd2090163723ebfdbbcb2.jpg


Both dials are very dynamic. Sometimes they look black, sometimes navy and sometimes straight up electric blue. The rep colour is lighter (gen looks closer to navy and rep looks closer to gray).

Gen:
3e36cbb27bfc29912b1046ce6ba33822.jpg


Rep:
3e791bea318feda50c90577fe967b995.jpg


I have seen at least x2 different gen blue dial colours and nobody has committed them all to memory, so don’t worry about your rep not being exactly the same colour as the gen picture on the net. JF have done a good job but there’s no way a $400 watch is gonna have the same level of refinement as a $17k watch (or whatever).
Rep (bottom), Gen (right):
45c4bcdc4891f8f2fc8fa645888014bd.jpg


Gen minute markers are precise, bold and perfect. Rep.....not so much ......but meh I can live with it as it is a marked improvement over the previous JF versions.

Rep:
bc08941958953c8b66a3241a9530a88c.jpg

c53e8c61a21fc242140c7588eaa4f6e1.jpg


Gen:
b9980071a82a01c195b284924893623c.jpg


Gen rehaut is also more shiner and compliments the blingy white gold hour surrounds. Rep does a good job here.

Gen:
a0a3c9980b48ee0afdafa3e067fb477d.jpg


Rep:
3a78911bfd633dccd8fffe9a00117482.jpg


^gen vs rep rehaut difference ain’t as big as it looks in those pics....it’s just difficult to picture the watches at exactly the same angle and focus.

Hand + Markers:
Hard to tell the difference in the pics but in real life the gen hands look thicker and more 3D, edges look more crisp - They reflect light in a totally different manner from rep. I’ll try to post a video later. The rep hands are very well copied but up close the gen is in a different planet in terms of finish and beauty....but one would expect that given the price difference.

Gen:
8fbd0e4b2bf96f9815962cbbf8130141.jpg

0ed2c058c1e887097e2562f3b410d095.jpg

Rep:
4a7c6c7477093374505c4a4c165a80e1.jpg

22b2099451a10092238b6ce938ebb1f1.jpg

Gen:
196ae22a279c1990afd79942167412d9.jpg

Rep:
f2d43ade7a9ed0f9370f43ed74e0e00f.jpg

Rep:
1c90579a9c605a06e3129b32d8a26221.jpg


On close inspection, the rep hands and markers look a little plasticy whereas the gen are precise cut white gold that sparkle in a very unique way. Anybody know what material the rep marker are made from?

Lume:
The lume paint on the rep hands is white and the hour markers are slightly green, gen hands and markers match perfectly (all white lume). Rep lume glow is decent but then again gen isn’t spectacular either:
Rep (note white hands compared to green markers):
48bdaca5373da6d794f0f9f81223a9c7.jpg

Rep (left), Gen (right):
ad74099768eae679b361b7dc8339b8f8.jpg


Rep markers are also dirty....possible fingerprints or glue smudges here and there. Hard to tell with the naked eye but I can see the flaws. All the Jf15400s I’ve had are like this. In the past I’ve paid people to polish rep hands and markers. It does help (a little) with improving the sparkle.

Caseback:
JF engravings are nice and deep. Close enough to gen. here are some macros:
Rep:
f633e3a320ae610a57ccc156ff5ccea0.jpg

Gen:
c575cd19be19be0f48caacf5e5c74417.jpg


Clasp:
Pics do the taking, not much to say really:
Gen:
7c39f95ee33be997441275f6fda64999.jpg

Rep:
5811fc8b3179989d7af3fda0ed4197f1.jpg



Crystal:
Hard to picture be difference but gen is a lot clearer (not x2AR). The rep crystal is probably one of the best crystals on any rep but can look a little milky at certain angles.
Rep(bottom), gen (top)
901fa82d2205fd550731947162ec0dde.jpg

4dc28133fcb0d73d151b3108e782a0fc.jpg

^rep bracelet looks pretty sic! They’ve done a very job here.

I’m worried be forum or my phone will crash so I’m gonna hit “post” for now:



To be continued.....





Sent from my iPhone using Tapatalk
 
Last edited:

mech500

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Crown:
Pics speak for themselves. Gen is obviously more crisp and better finished. But who cares....Rep is close enough, who the fuck can see the crown whilst on the wrist anyway.

Gen:
e0d3868b33d9288981ac0b77aadd3854.jpg


Rep:
94292c7dda4011734730a4d125723294.jpg



Movement:
Pictures speak for themselves. Gen rotor is surprisingly loud....not dead silent like my R-fac Rollies or modern OMega 8900. JF have done well with the overall look and finish. Ofcourse you ain’t gonna fool anyone in the know but rep does look pretty tho. Most of the rep Miyota swatches I’ve handed do require a drop of lube on the rotor to prevent them from sounding like a freight train.

Gen:
22db49eed3f54a007272f043855b9004.jpg


Rep:
bc5c48ea9720e52c2270b51cdc808b48.jpg



Clasp:
Not much to say, Rep is close enough, the difference in print could be down to different gen batches, I have no way of knowing otherwise. Rep clasp feels sharper along edges than gen and is not as well refined but closes securely and feels premium. Very well done Jf.

Gen:
46e25b6af11fb7c0b85ef50c2f72ac40.jpg

Rep:
330b71a7404dca0d8ef834218a4a72e7.jpg

Gen (bottom), Rep (top):
7426efd0ec7472853a295d678eeecbcf.jpg



To be continued......



Sent from my iPhone using Tapatalk
 

Natas78

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Thanks, looking forward to more!
 
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mech500

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Bracelet:
Rep looks just as good as gen on the wrist IMO. Of course gen pops better but Remember my gen is brand new, I’ve handled plenty of watchmaker refinished APs and they don’t look anything like the factory finish. So don’t worry too much about your rep not having the exact same finish as a brand new gen straight outta Switzerland. Doesn’t make it fake (on the wrist).....just don’t hand it to somebody acting like it’s gen. you will get laughed at.

Gen:
c66d48d56fc5e0a2c8a2bdc94389d7c9.jpg

Rep:
3134195ea1e27a5c9244e6400db01dee.jpg

Gen(left), Rep (right):
09567a3230d57f8ef3e66c39381d1b86.jpg


It’s hard to explain but gen brush is finer and the whole thing just glistens like liquid metal on your wrist. The rep is close but I can see why the gen costs THAT much more. The differences are minimal (and hard to quantify) but collectively the small touches here and there on gen have a huge visual effect and contribute to enhancing gen beauty by orders of magnitude over the rep.


Thickness:
The rep is simply too thick for what it is. It feels like a mini diver, which is not the look AP intended for this watch. Gen, being thinner, feels right and is much better proportioned. The distribution of weight between clasp and head feels a bit off on the rep (being top heavy). That’s just me nit-picking and having the benefit of a gen side by side for comparison.

Gen(left), Rep(right):
aec82911ae5413722affc96118deb35d.jpg


^rep is fat as fuck and bracelet is quite stiff from factory (both watches are new and unworn)


Bezel & screws
Both look the same to me. Lol. Of course gen brush is more defined but rep is close enough. Apparently gen screws are white gold vs rep 316L stainless. I can’t tell the difference. I read a thread about some bloke wanting to add gen WG screws to his JF, my advise is, don’t waste your money mate. Lol. JF have done an excellent job with the factory screw fit and finish.
Rep:
48f18084a80a7a2ac49d8ea7d2c0bef4.jpg

Gen:
614a57b1faf726b8d7cc1c74a083b154.jpg




Crystal:
Gen crystal is infinitely more clearer than rep. Well, to a connoisseurs eyes anyway. I had previously thought JF crystal was amazing, until I compared it side by side with gen. Gen clarity is unreal. Rep crystal kinda looks milky at some angles, this can make the rep dial look muted under certain lighting/angles and just reduces the “pop” factor you get on the gen. Again, this is just a personal opinion and shouldn’t stop any prospective buyers from dropping $400 on a JF. The JF crystal is consistent with its price tag.


(Pics to follow)



To be continued over the weekend......



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mech500

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I can’t find any decent gen vs rep crystal pics on my phone to illustrate the difference. I’ll have to take some better ones tomorrow (in daylight):



You can see gen vs rep thickness here:
Gen (left), Rep (right)
3c7322f20ea53f2ae96efc836322a5a8.jpg



Here’s some random comparison pics that I should’ve attached to the above posts (sorry for fragmented posting but like I said, I’m worried my phone or the forum will crash):

Gen(left), Rep(right):
dbbb3abb5692e9d0e35beffa2b8ff55c.jpg


38423295292305af31a997e28cd95fdb.jpg


Gen:
d9aeff7edfbf44604a107b960f143cae.jpg

Rep:
70688a7273d6de1349c3bb55b867239c.jpg

Rep (left), Gen (right):
29224f0bf0d0d68b6c878f4905542d81.jpg

Rep:
fa2f5103a497d95f107af10291f10d49.jpg

Gen
89f0f5e4b407a64765f73682e1cd38ff.jpg

Gen (bottom), Rep (top):
8caac7964a6fe6a853085ee550578dc1.jpg


^doing a fair comparison on this watch requires the watch to be held in exactly the same angle/lighting....I’m kinda struggling to do that with x2 watches and an iPhone in my hand....doing my best not to knock the watches together and ding them. The finish on both is stunning but you only have to breath on them to scratch them. Seriously, these are both fucking scratch magnets.

Gen (left), Rep(right):
a2dedf836e6047d6ab4e2efa53434bda.jpg



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efthimis

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Oh My GOD!!!! I didn’t know you were after the gen 15400, congratulations!!! Thank you for the nice review bro, wear it in good health always!!


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mskwatch

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mech500 I've been waiting for you to post this comparison and you surprised me, I thought you are gonna make a post somewhere, but you really did a great job for the community with all those details. Thank you! I think mods should pin the topic.

Your pics are incredible, basically they show how strong is the rep scene in 2018, but on the other hand you managed to highlight some of those details that make the gen cost a lot. Would love to see a lume comparison and also your evaluation regarding brightness and glowing time when you can.
 
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mech500

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Amazing! Would a prof Xtal help the rep dial at all?

No. I love x2AR on ROOs, in fact I would say it’s mandatory on the black dial reps (eg Diver) but hate x2AR on this watch.

Gen crystal reflects light in a manner that compliments the shiny bracelet, if you swap in a missing x2AR crystal, it will completely change the look of the watch away from OEM design intent IMO.

Gen crystal is very clear but it’s not invisible (unlike x2AR).




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androme

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No. I love x2AR on ROOs, in fact I would say it’s mandatory on the black dial reps (eg Diver) but hate x2AR on this watch.

Gen crystal reflects light in a manner that compliments the shiny bracelet, if you swap in a missing x2AR crystal, it will completely change the look of the watch away from OEM design intent IMO.

Gen crystal is very clear but it’s not invisible (unlike x2AR).

Ah gotcha, thanks! So if I was to source a gen dial, is it a straight forward drop in (unlike ROOs with needing LWO, Mikey hands+tachy, casework etc)? Sorry for Q's!

On side note, how much did gen set you back?
 

stufuse

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Great comparison, I just saw this post off the back of reading an old vs thread on the geek, comparing the bp to gen.

You can really see in your pictures how much more refined the gen is, which is to be expected but I agree, the jf is very good indeed. Congratulations on the Gen it’s beautiful. Very jealous.


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Funtimezz

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Thank's for this amazing "mini" review.
I just saved this page for further studying purposes.
 
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