Explorer 2 16570 question

[foxlovefish]

Hi all, hope anyone can help the question below, thanks

1. noted that caliber 3186 comes from the Year 2005 in GMT.
Does 16570 G Serial (2010-11) with 3186 will likely have that spring issue or the issue had been fixed in early GMT already?

2. If no big difference in pricing&the condition is similar, which one should consider for Ex2, 3185 or 3186?

thanks

[georgekart]

Originally Posted by foxlovefish

Hi all, hope anyone can help the question below, thanks

1. noted that caliber 3186 comes from the Year 2005 in GMT.
Does 16570 G Serial (2010-11) with 3186 will likely have that spring issue or the issue had been fixed in early GMT already?

2. If no big difference in pricing&the condition is similar, which one should consider for Ex2, 3185 or 3186?

thanks

1. No. Early 216570 which came after the 16570 production already stopped also had the same problem and it even uses slightly different 3187 movement (but the spring is the same). IIRC the problem was fixed around 2016.

2. If price and condition were the same, I'd go for 3186. The spring will be replaced at service anyway, 3186 is more magnetic resistant due to Parachrom hairspring.

[foxlovefish]

Originally Posted by georgekart

1. No. Early 216570 which came after the 16570 production already stopped also had the same problem and it even uses slightly different 3187 movement (but the spring is the same). IIRC the problem was fixed around 2016.

2. If price and condition were the same, I'd go for 3186. The spring will be replaced at service anyway, 3186 is more magnetic resistant due to Parachrom hairspring.

thanks a lot.

[jbglx]

Originally Posted by foxlovefish

Hi all, hope anyone can help the question below, thanks

1. noted that caliber 3186 comes from the Year 2005 in GMT.
Does 16570 G Serial (2010-11) with 3186 will likely have that spring issue or the issue had been fixed in early GMT already?

2. If no big difference in pricing&the condition is similar, which one should consider for Ex2, 3185 or 3186?

thanks

I have a G series 3186 ( can be seen in my avatar) , bought in 2011 , and never had the "spring" issue !
Last year took it to service at RSC , so it has Rolex warraty until sept. 2021

[padi56]

Originally Posted by foxlovefish

Hi all, hope anyone can help the question below, thanks

1. noted that caliber 3186 comes from the Year 2005 in GMT.
Does 16570 G Serial (2010-11) with 3186 will likely have that spring issue or the issue had been fixed in early GMT already?

2. If no big difference in pricing&the condition is similar, which one should consider for Ex2, 3185 or 3186?

thanks

Originally Posted by georgekart

1. No. Early 216570 which came after the 16570 production already stopped also had the same problem and it even uses slightly different 3187 movement (but the spring is the same). IIRC the problem was fixed around 2016.

2. If price and condition were the same, I'd go for 3186. The spring will be replaced at service anyway, 3186 is more magnetic resistant due to Parachrom hairspring.

The spring issue with the cal 3186 was with the date change and nothing to do whatsoever about the hairspring. And having a parachrom hairspring or not, no big deal either way, and I would not pay extra for a 3186 as the 3185 in many ways is a slightly better all round movement.

[SearChart]

Originally Posted by foxlovefish

Hi all, hope anyone can help the question below, thanks

1. noted that caliber 3186 comes from the Year 2005 in GMT.
Does 16570 G Serial (2010-11) with 3186 will likely have that spring issue or the issue had been fixed in early GMT already?

2. If no big difference in pricing&the condition is similar, which one should consider for Ex2, 3185 or 3186?

thanks

I'd always pick the 3185 myself.

[georgekart]

Originally Posted by padi56

The spring issue with the cal 3186 was with the date change and nothing to do whatsoever about the hairspring. And having a parachrom hairspring or not, no big deal either way, and I would not pay extra for a 3186 as the 3185 in many ways is a slightly better all round movement.

I didn't say the issue has anything to do with Parachrom if you read what I wrote. I said I'll choose 3186 over 3185 due to Parachrom. I've gotten my watches magnetized a couple of times. Not those with Parachrom. Might not matter to some.

[padi56]

Originally Posted by georgekart

I didn't say the issue has anything to do with Parachrom if you read what I wrote. I said I'll choose 3186 over 3185 due to Parachrom. I've gotten my watches magnetized a couple of times. Not those with Parachrom. Might not matter to some.

Well again there are other things that could get magnetised in any movement not only the hairspring.And again in the real world if you dont hold the movement with the case back off dangling over a powerful magnet I would doubt no matter the name of the hairspring would make any difference.And if any watch did get magnetised its a very very simple process to demagnetise.Rolex used the ones from Nivarox over the past 50 plus years on countless millions of movements without any problems.And the main reason for Rolex plus many others to develop there own hairsprings was simply this, around 2010 the Swatch group who owned ETA Nivarox Far, stated they would no longer supply escapement parts outside the Swatch group.

While in the Rolex video it states the Parachrom is 10 time more shockproof, but what they dont state is to what.Most certainly not the Nivarox ones that they and most of the watch industry have used for the past 50 odd years.And with magnetic test where they hold a powerful magnet over a open case on a watch.So if you dont wear your watch dial down with the case back off with a powerful magnet near any hairspring.Then I would doubt in the real world that it would make little or no difference whatever the name of hairspring in the case.

Now Nivarox thats the name of the alloy much like Rolex calls there Parachrom. Today it is used mainly in the watch/clock industry, but also in other micro-machine industries and in certain types of medical equipment and high precision surgical instruments. There are several variations of the Nivarox alloy depending upon the intended application. These alloys are stainless steel alloys with high concentrations of Cobalt (42-48%), Nickel (15-25%) and Chromium (16-22%). There are also small amounts of titanium and beryllium. Hairsprings made of this alloy are highly wear-resistant,and they are practically non-magnetic in normal wearing,and non-rusting and possess a low coefficient of thermal expansion.

Nivarox number 1 through to number 5 is a series of grades of hairsprings with number 1 being the best quality. The most commonly encountered Nivarox hairsprings in the watch industry are grades 1 to 3. The alloy is unaffected by heat and normal every day ordinary magnetic fields. There is however, also the Anachron hairspring which is said to be of even higher quality than the Nivarox No 1 grade.Who knows perhaps that the grade that Rolex used over the past 50 odd years.

[BillA]

Here we go again, “3185 vs. 3186.
Search this and you will find lots written.
People say the 3186 more collectible because less made. The fact is we do not know how many were made. I would bet less made, because limited production years, but does that make it collectible? That’s up to the buyer. I have the 3185 in my 16570 and it runs very well.

[lamkinpark]

If same condition n price, I would go for the 3186.

[BillA]

Originally Posted by lamkinpark

If same condition n price, I would go for the 3186.

Not going to be same price, people who sell the 16570 with the 3186 movement ask more for the watch. Personally, I would not pay a nickel more.