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GMF Explorer II 226570 with VR3285 Made with Gen as Reference

Submariner23

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Ouch😃
Lucky me…l own both Versions (Black and Polar).
Both with Service and Waterproofed…no Problems until now (fingers crossed 😂).
The wrong crown issue is no problem for me…just enjoying them🍻

 
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Maxcacciatori

I'm something of a collector myself
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Ouch😃
Lucky me…l own both Versions (Black and Polar).
Both with Service and Waterproofed…no Problems until now (fingers crossed 😂).
The wrong crown issue is no problem for me…just enjoying them🍻

Hi mate,
Service and waterproof at the purchase, or privately when you received it?
I have the Polar, btw, and I love it!
Cheers
 
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Submariner23

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Private from my Watchsmith….
Enjoy your Polar…it’s a great Summerwatch🥰
 

Submariner23

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Only as a reference…I never play with the extra functions ( GMT,Quick Set,Chrono,etc).
Only set the Watch with the normally crown position and wear it😉
 

Maxcacciatori

I'm something of a collector myself
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Well, I like to set them once at the desired 2nd timezone (I like GMT functions), veeery gently, and then just to set the time if needed.

I would avoid play too much with these babies, especially since the movements are not exactly bomb-proof ;)
 

dogwood

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I’ve worked on a couple of these SH3285 movements now, and I’ve seen some issues with the hour jumping mechanism. I’ve found the issue is that the hour jumping pinion (red arrow) can pop up and off the hour jumping spring (blue arrow). This can result in the hour hand not “indexing” anymore, it won’t jump but it’ll simply spin quickly like it would if it was jumping, but it doesn’t hop, it just moves continuously. My fix for this was to adjust the jewel height on the date plate bridge down slightly to keep the pinion more firmly pressed down onto the jumper spring. That seems to have solved the issue. These are probably just teething pains for this movement. With time, I expect it will be as reliable as the vr3235.

 
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Maxcacciatori

I'm something of a collector myself
23/4/23
122
56
28
Europe
I’ve worked on a couple of these SH3285 movements now, and I’ve seen some issues with the hour jumping mechanism. I’ve found the issue is that the hour jumping pinion (red arrow) can pop up and off the hour jumping spring (blue arrow). This can result in the hour hand not “indexing” anymore, it won’t jump but it’ll simply spring quickly like it would if it was jumping, but it doesn’t hop, it just moves continuously. My fix for this was to adjust the jewel height on the date plate bridge down slightly to keep the pinion more firmly pressed down onto the jumper spring. That seems to have solved the issue. These are probably just teething pains for this movement. With time, I expect it will be as reliable as the vr3235.

Thank you very much for this!

And what may cause this issue? Or is it totally random from production process?
 

dogwood

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Thank you very much for this!

And what may cause this issue? Or is it totally random from production process?
I suspect it’s random from production. But as movements break, feedback will get back to Shanghai movement factory and they’ll implement tighter QC on this jewel’s position in subsequent batches of movement production.
 

Maxcacciatori

I'm something of a collector myself
23/4/23
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I suspect it’s random from production. But as movements break, feedback will get back to Shanghai movement factory and they’ll implement tighter QC on this jewel’s position in subsequent batches of movement production.

We should all contact our TDs and tell them this ;) Because it's really a beautiful watch otherwise
 

TheDan772

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What exactly was done to your Explorer IIs? I just bought a black GMF Explorer II from Jtime and it is beautiful. Waiting for the DD 3285 Clean version, if it ever comes out, but this is a pretty amazing watch for the price.
 
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