WDULT (What did you learn today)

Posts
16,863
Likes
47,901
That there is a Speedmaster Teutonic

Actually several of them


Why don't you see or hear of them often?
 
Posts
3,861
Likes
8,804
Because the DON and the dot next to 90 both have a dot over 100. 馃槜

馃う Doh!

Found an image of the DON and enlarged it. I can see the dot is clearly over the 90 in these early bezels. I am assuming pre 1970?

Learn something new every day, if you open your eyes and look carefully. ::rimshot::
Edited:
 
Posts
6,584
Likes
78,277
Well...I learned that shipping can take its toll on a newly serviced watch...even if it's extremely well packed.

I received my beloved Seiko 6309-7049 automatic (my first 'flying watch', purchased new in 1987 while in Navy primary flight training) via the USPS. I was so excited...it had been gone for months. I set the correct time, strapped it on my wrist and went on my merry way. But then I checked the time about 2 hours later...and it was about 30 minutes (MINUTES not SECONDS) fast. WTFO?!? Maybe I set the incorrect time? OK, I reset it to the correct time. But then I checked the time 15 minutes later...and it was already about 5 minutes (MINUTES not SECONDS) fast. Double WTFO?!?!? Now I'm freaking out! I call the highly respected watchmaker (a Seiko specialist) who performed the service and he explains that most likely what happened is that it received a jolt in shipping that splashed oil on the hairspring...effectively shortening the hairspring causing it to run very fast. He explained to me in detail how this happened and it all made sense...even to this uneducated watch dude...so I'm very grateful regarding his explanation. He had me send it back to him and he received it today...and he confirmed that oil had splashed on the hairspring...so he will get it in order and then send it back to me shortly.

Anyway, that's what I learned today.
 
Posts
1,821
Likes
7,258
Well...I learned that shipping can take its toll on a newly serviced watch...even if it's extremely well packed.

I received my beloved Seiko 6309-7049 automatic (my first 'flying watch', purchased new in 1987 while in Navy primary flight training) via the USPS. I was so excited...it had been gone for months. I set the correct time, strapped it on my wrist and went on my merry way. But then I checked the time about 2 hours later...and it was about 30 minutes (MINUTES not SECONDS) fast. WTFO?!? Maybe I set the incorrect time? OK, I reset it to the correct time. But then I checked the time 15 minutes later...and it was already about 5 minutes (MINUTES not SECONDS) fast. Double WTFO?!?!? Now I'm freaking out! I call the highly respected watchmaker (a Seiko specialist) who performed the service and he explains that most likely what happened is that it received a jolt in shipping that splashed oil on the hairspring...effectively shortening the hairspring causing it to run very fast. He explained to me in detail how this happened and it all made sense...even to this uneducated watch dude...so I'm very grateful regarding his explanation. He had me send it back to him and he received it today...and he confirmed that oil had splashed on the hairspring...so he will get it in order and then send it back to me shortly.

Anyway, that's what I learned today.

Sounds to me like an "oil crisis"

::rimshot::
 
Posts
17,945
Likes
37,524
Holy crap!
How much oil was sloshin' about in there?

Maybe you need one of these.
 
Posts
29,675
Likes
76,836
Did he tell you where the oil came from that was splashed on the balance spring? He must be using an extra large sized oiler only available to Seiko specialists...

Magnetism, or the balance spring getting hooked on the stud (common issue on some Seiko models due to their geometry) sounds much more likely to me, but hey I'm no Seiko specialist. 馃槈
 
Posts
6,584
Likes
78,277
Did he tell you where the oil came from that was splashed on the balance spring? He must be using an extra large sized oiler only available to Seiko specialists...

Magnetism, or the balance spring getting hooked on the stud (common issue on some Seiko models due to their geometry) sounds much more likely to me, but hey I'm no Seiko specialist. 馃槈
@Archer...yes, sir...he explained to me that the oil came from the balance jewel. He explained that too little oil at that location and it only lasts for year or two...so he uses just enough oil, enough to cover half of the balance jewel...but even that amount (if knocked in a certain way) can push the axle/pinion up into the balance jewel and the oil sprays out similar to the action of a plunger. He also explained that in his experience that fresh oil tends to settle in after a period of 4-6 months and following that period the possibility of spraying is greatly reduced.
 
Posts
6,584
Likes
78,277
I don't think it's oil.

More likely a bunch of bulls**t.

[emoji90]
@Darlinboy...I would certainly hope that poo is [was] not present in my beloved Seiko 6309-7049. 馃槈

That pile of poo with a face emoji is "neato-torpedo", however. 馃憤
 
Posts
15,489
Likes
45,888
Sounds to me as though the "oil splashing" diagnosis is a white wash! If he was so haphazard that there was actually oil on the hairspring, he should give you a thorough re-do, or a refund! A tangled hairspring? More plausible perhaps, but it happened during shipping, even though it was well packed? A Seiko specialist? Hmmmmm! Magnetism? With an alloy balance wheel and hairspring? I'd need to see that! And how could it have become magnetized in the mail? Could be he's one of these guys who takes the dial and hands off, and runs the watch through a clean/rinse cycle, and the rinse again in Solo Lube! I think I have learned how evasive some "watchmakers" can be in deflecting responsibility!
 
Posts
16,863
Likes
47,901
And how could it have become magnetized in the mail?

Sitting next to thousands of possible magnetic things in the mail bag. Speakers anything with a small electric motor even fishing lures have magnets in them now days
 
Posts
15,489
Likes
45,888
Well, okay! Let me put it another way! Seikos have an alloy hairspring and a non-ferrous balance wheel. How might one go about magnetizing such a watch, in the mail, in a hydroelectric power plant, or anywhere else, for that matter! The topic of this thread is WDULT. Please learn me something! The performance described by the OP implies shoddy watch repair to me!
 
Posts
6,584
Likes
78,277
...The performance described by the OP implies shoddy watch repair to me!
@Canuck...sir, I don't believe it to be shoddy watch repair. My Seiko 6309 is back at his shop and he reported that there is in fact oil on the hairspring (most likely the result of a knock during shipping). He is making it right (not his fault) and then is sending it back to me.
 
Posts
5,562
Likes
54,029
@Mad Dog : did you leave out the part about you stopping for a quick MRI on the way home from the Post Office?

Ha ha -- I make leetle joke 馃榾
 
Posts
3,861
Likes
8,804
I leant today that you don't get an extra link with a Woman's Constellation bracelet and by implication that wives don't like being told that their wrists are too big.
 
Posts
29,675
Likes
76,836
Can you give me the exact percentage of metals in the alloy and all the connecting parts and I will learn you some more. But to start you off alloy can be magnatized

http://www.goudsmit-magnetics.nl/EN/About-magnetism

Of course alloy springs can be magnetized as watchmakers know. I see plenty of magnetized watches that do not have blued steel balance springs. This video shows the way a magnet affects balance springs on three different types of springs on three different Rolex models. The person who took this is saying that the Daytona had the Parachrome spring even before they coloured it blue but as a demonstration you can clearly see the Nivarox spring in the 3135 can be affected by a magnetic field...


Certainly alloy springs are less likely to be magnetized then a blued steel spring is, but they certainly can be magnetized.

Cheers, Al