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Why does prof crystal differ from stock crystal in thickness?

dashindark

Renowned Member
20/4/17
871
366
63
I installed my prof 1xar crystal and immediately found that the crystal does not stick up past the bezel like the XF stock crystal does. I compared the two and found that the XF stock crystal is a lot thicker than the prof one.

Any ideas? which one is more genlike?
 

Darude

Known Member
MULTI ACCOUNT
17/4/18
197
160
43
Not quite sure why you have different sizes of crystal, I measured xf’s and prof’s crystal, they are the same thickness
 

dashindark

Renowned Member
20/4/17
871
366
63
Not quite sure why you have different sizes of crystal, I measured xf’s and prof’s crystal, they are the same thickness

Bro, they are not. I made my watch smith take off the XF stock crystal and compared with the prof 1X AR crystal but the XF stock crystal is thicker by about 0.5 mm.

By the way, it is good to have you and your expertise back on forum. After today's modding I found the hour hand a bit too close to the dial, it is nearly touching the dial.... Does it matter? Is it fixable?

Thanks in advance.
 

dashindark

Renowned Member
20/4/17
871
366
63
It is now running without problems but I am a bit concerned that it may stop running someday due to the hour hand hitting the dial.
 

Darude

Known Member
MULTI ACCOUNT
17/4/18
197
160
43
Is the watch that you are modding = 15703/15707?
So apparently prof sold two different xtal for ap diver since 15706 and 15703/15707 have different xtal thickness. I got the wrong xtal for my 15706, it’s 0.5mm thicker than the one from xf. So I think you have ordered the xtal specifically for 15706 only.
what you can do is to tell prof about this problem, you can send back your crystal to him in exchange for a correct xtal.

To sum up:
15703/15707 = 2.5mm crystal
15706 = 2.0mm crystal

Not sure why 15706 is thinner, but that’s the case lol
Hope this help!
 
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dashindark

Renowned Member
20/4/17
871
366
63
Is the watch that you are modding = 15703/15707?
So apparently prof sold two different xtal for ap diver since 15706 and 15703/15707 have different xtal thickness. I got the wrong xtal for my 15706, it’s 0.5mm thicker than the one from xf. So I think you have ordered the xtal specifically for 15706 only.
what you can do is to tell prof about this problem, you can send back your crystal to him in exchange for a correct xtal.

To sum up:
15703/15707 = 2.5mm crystal
15706 = 2.0mm crystal

Not sure why 15706 is thinner, but that’s the case lol
Hope this help!

Actually I don’t have a 15703 or 15707, and I was modding for my 15706. I took off my stock XF crystal and found it to be thicker than the crystal prof sent to me by 0’5 mm. The crystal.prof sent to me was so thin that it barely sticks up past the bezel after installing. Not sure if this is more genlike or not.
 

w0rn

Active Member
Supporter
19/7/15
342
93
28
Is the watch that you are modding = 15703/15707?
So apparently prof sold two different xtal for ap diver since 15706 and 15703/15707 have different xtal thickness. I got the wrong xtal for my 15706, it’s 0.5mm thicker than the one from xf. So I think you have ordered the xtal specifically for 15706 only.
what you can do is to tell prof about this problem, you can send back your crystal to him in exchange for a correct xtal.

To sum up:
15703/15707 = 2.5mm crystal
15706 = 2.0mm crystal

Not sure why 15706 is thinner, but that’s the case lol
Hope this help!

Did a build a year ago on a v6f 15707 with a prof xtal on it and had to use a 2.0 mm to get the correct height of it, so I have to say that atleast on the v6f 15707 you have to use the 2.0mm xtal.
Or better, meassure the one that you are replacing before order a new one.
 

dashindark

Renowned Member
20/4/17
871
366
63
Prof probably sent me the wrong crystal. OMG....

I measured the XF stock crystal and found it to be 2.0 mm thick. So the crystal that prof sent to me was probably a crystal for 15400
 

dashindark

Renowned Member
20/4/17
871
366
63
Just measured the XF stock crystal and found it to be 2.0 mm thick. So prof probably sent me a wrong one which should actually be installed on a 15400....
 

dashindark

Renowned Member
20/4/17
871
366
63
Is the watch that you are modding = 15703/15707?
So apparently prof sold two different xtal for ap diver since 15706 and 15703/15707 have different xtal thickness. I got the wrong xtal for my 15706, it’s 0.5mm thicker than the one from xf. So I think you have ordered the xtal specifically for 15706 only.
what you can do is to tell prof about this problem, you can send back your crystal to him in exchange for a correct xtal.

To sum up:
15703/15707 = 2.5mm crystal
15706 = 2.0mm crystal

Not sure why 15706 is thinner, but that’s the case lol
Hope this help!

Bro, could you do me a favor? Prof is asking to confirm the diameter of my XF stock crystal so that he can send me a new one.

Is the diameter 32.0mm or 32.5 mm on your XF stock crystal? Thanks!