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Review: IWC 5027 Big pilot annual calendar le petit prince

peter4103

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I promised to write a review on the IWC 5027 big pilot annual calendar le petit prince from AZF a while ago. I have had the watch now for about 6 weeks and have been using it in rotation with my other watches. For a gen - rep comparison, please see my other post on RWI, in which there is a thread highlighting the differences.

First impression when receiving the watch is quite good. It’s a lovely piece and looks excellent. As the big pilot is a little over 46mm excluding crown and over 17mm thick, this watch will not suite everyone. I have a wrist size of 18,5cm and its pushing it size wise, but does fit. I would recommend at least a wrist size of 18cm as otherwise the watch will be way too large and it would be better to go for a Portugieser, which is between 42,5mm and 44mm, depending on the precise type.

The strap which is delivered with the watch is not the one in the pictures when ordering, and instead of a brown calf skin strap its a black leather strap with alligator print. To be honest, the strap is inflexible, and feels cheap, so be prepared to buy a better strap when considering this watch. I’ve opted for a brown leather strap, hand made, with rivets, just like the original and with a price of 160 euro slightly cheaper than an original strap. I wanted to buy an original to be honest, but the delivery time at IWC was over 6 weeks, which I thought was crazy.

I was a bit nervous about the movement and the annual calendar as it’s a complicated movement which might be quite sensitive. When unscrewing the crown however, everything feels quite good, no play, and you can feel the smoothness of the movement. The operation of the watch is as per gen, so watching a video online proof usefull and setting the calendar was child’s play. You do have to rotate through the days, and months, to get to the right day, which in my case was several months, but it did not take more than 5 minutes to set the watch.

Time to have a proper look at the watch itself. The blue sunburst dial is insane! What a beauty! The whole finish of the watch is at real high standards. No flaws detected and everything seems to add up. The printing of the dial is excellent (although as you can read in the comparison post there is a difference in fonts in 2 places -which is the only difference between rep and gen by the way-) and the numerals are beautiful. The annual calendar windows properly display the date, day and month wheel. Dead center and with the right font, size etc.. The case is big as you might expect. With a little over 46mm it is the largest watch I own and I am not going any larger for a watch than this.

The daytime lume and night time lume are insanely good. Very bright and ling lastig. The hour and minute hand are of high finish and have a very elegant look to them.

The movement is the 52850 movement (adjusted 7750 for what I understood, but I am no watch smith) and is decorated to match the gen movement. The watch has an open case back as per the gen and it looks lovely.

Overall I am quite happy with the purchase. Its a stunning watch and has triggered a lot of compliments already. The difference in fonts is only a minor flaw which only watch geeks like us will be able to tell with the gen next to it, so does not bother me.

I have purchased the watch with @puretime and the service was as I am used to, excellent. I am mentioning this since i noticed a small issue the other day and when mentioning this to them they immediately offered to help. No need for it as the issue seems to be solved already, but great to experience their willingness to help.

Some pictures:

 
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Pinion Minion

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Thanks for this- it looks like they did a pretty good job keeping the depths of the day/date wheels close.
 

peter4103

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Yes, its pretty exact. Its a very complex movement as all the inserts have their own wheel.
 

Plaasbaas

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Thanks for the write-up, beautiful piece. Sorry to hear about the issue.

Is the rotor stuck, or does it just not wind the watch? Depending on where you are it might be worth looking for a local watchmaker first. Sending it back mostly involves additional and often unnecessary risk.
 
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peter4103

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True. Located in NL / EU. Disc rotates, so something off in the inner works of the movement I guess.
 

peter4103

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Thanks for the write-up, beautiful piece. Sorry to hear about the issue.

Is the rotor stuck, or does it just not wind the watch? Depending on where you are it might be worth looking for a local watchmaker first. Sending it back mostly involves additional and often unnecessary risk.
I had a better look today and it is indeed the rotor. When carefully ensuring it makes enough movement the watch is winding. It’s a big chunk of metal, the rotor in this model,
So its not making a full swing. I guess lubricating the rotor might do the trick, but no clue who might be able to do that. Certainly not me as I am not fiddling around with watches myself. ;-)

After rotating it a few times manually the issue was solved.
 
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Plaasbaas

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I had a better look today and it is indeed the rotor. When carefully ensuring it makes enough movement the watch is winding. It’s a big chunk of metal, the rotor in this model,
So its not making a full swing. I guess lubricating the rotor might do the trick, but no clue who might be able to do that. Certainly not me as I am not fiddling around with watches myself. ;-)

Easy job for any watchmaker willing to work on reps, less than two minutes. For beginners, apart from using the correct lubricant, the main problem is to use the appropriate amount, as one tends to use way too much and cause more trouble than good in the end.

But if your rotor is able to make a full circle and moves freely in general, lubrication will not help much. Your arm movement during "normal" wear is not enough to wind it to full power reserve as you will observe by monitoring the power reserve hand. It needs to be wound manually from time to time. Disregard this last part if it was obvious to you, I just didn't know how familiar you are with automatic watches.
 

peter4103

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Yes, the power reserve is functional and the hand on the dial is working. It’s logically not a 7 day power reserve as that is something really special and not many watches (gen) have this. It keeps about 48-72 hours (something in between that.)

It does wind fully and keeps full winding when wearing the watch. In the watch box it depends on the ‘swing’ the box is making. One of my boxes as a large enough swing to keep it fully charged, the other one does not, so hence I thought initially there was an issue with the watch. There’s not, it’s just a very large and heavy rotor.
 

higginsd

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Box? You mean a watch winder? I made very good experiences with Boxy Fancy Bricks from Beco. You can mount the watch horizontally and it makes a slow 360 degrees turn every X minutes, depending on the setup. This should wind the watch because the rotor keeps hanging downwards.
 
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peter4103

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By the way, the watch is up for sales on this platform as I went back to gen. Bought a Pilot double chronograph limited edition Antione de saint exupery. Very nice watch with extremely tasty tobacco brown dial.
 

higginsd

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Box? You mean a watch winder? I made very good experiences with Boxy Fancy Bricks from Beco. You can mount the watch horizontally and it makes a slow 360 degrees turn every X minutes, depending on the setup. This should wind the watch because the rotor keeps hanging downwards.
Sorry, not horizontally. Vertically.