What is a 2838 Movement?

[d4m.test]

I'm posting this question here and in the "general discussion: forums: I have two watches whose movements are stamped "2838" on them; I've never heard of these. What type of movements are they? What type of history do they have? Are they reliable or not? etc.?


Thanks.


dave

 

[boostin20]

All I know about it is it's 36k bph.

 

[KBH]

I think you'll find it's either a 2836-2 that the 6 looks like an 8 or a mis-stamped Chinese clone movement. Look closer or post a picture.

Negative on the 36k bph. AFAIK ETA never made one. Only Zenith (El Primero) and Seiko.

 

[boostin20]

I think you'll find it's either a 2836-2 that the 6 looks like an 8 or a mis-stamped Chinese clone movement. Look closer or post a picture.

Negative on the 36k bph. AFAIK ETA never made one. Only Zenith (El Primero) and Seiko.

Cough, http://www.ofrei.com/page458.html

I read somewhere (I think wus) that the only difference between the 2836 and the 2838 is the 38's balance wheel is smaller.

Just found this also:

ETA made quite a few calibers that operated at 36,000 bp:

ETA 2730
ETA 2732
ETA 2732R
ETA 2734
ETA 2738
ETA 2738R
ETA 2806
ETA 2807
ETA 2812
ETA 2813
ETA 2817
ETA 2819
ETA 2826 (This caliber number has been reused as a big date version of the 2824)
ETA 2826R
ETA 2827
ETA 2827R
ETA 2832
ETA 2837
ETA 2838
ETA 2838R
ETA 2839
ETA 2839R

All have since been discontinued.

 

[d4m.test]

I think you'll find it's either a 2836-2 that the 6 looks like an 8 or a mis-stamped Chinese clone movement. Look closer or post a picture.

Negative on the 36k bph. AFAIK ETA never made one. Only Zenith (El Primero) and Seiko.

I'll do that tonight, KBH, & post it for your perusal and for others as well. I absolutely have NO CLUE.

Thanks to YOU and to Boostin for the feedback. Appreciated.

dave

 

[KBH]

Strange that scouring Google shows very little, other than on Otto Frei 's couple of pages and bunches of Omega Swiss Replica watches on scam sites, I see absolutely no reference to an actual ETA 2838. And scouring Otto Frei pages I see no actual listing of a 2838. I was quite sure I was right..........until......

And that was after checking the first 6 pages on Google.

And I did find this which is quite confusing on WatchOtaku.com:

ETA 2837

Added by Paul Hubbard , last edited by Paul Hubbard on Nov 25, 2009 17:33. Labels


stub
36000
hi-beat
2837
eta



The ETA 2837 is a hi-beat movement from the 1970s, designed to be a chronometer. It's quite rare today, and only found in vintage watches. hi-beat in general is super rare, currently only sold in the Zenith El Primero and Grand Seiko line.
According to Dan Fock:

Around this time companies were experimenting with Hi-Beat movements, 36,000BPH. The more beats the smoother the movement and the more accurate. The 2837 is a Chonometre grade movement. Based on the very robust 2824 family, but significantly upgraded.
​

Specs

• 36000 vph
• Size 11.5 ligne

But then I found this on Watchuseek, so I guess you are right! Kudos.



Re: ETA 36,000 Hi Beat Movements


I have a hard copy, but no way to scan it.

The following information is from my copy:

2819 - 36,000 bph version of the 2801
2806 - 36,000 bph version of the 2804
2817 - 36,000 bph version of the 2816 (a day/date 2801)
2839 - 36,000 bph version of the 2821 (dateless automatic)
2826 - 36,000 bph version of the 2824
2837 - 36,000 bph version of the 2836
2838 - 36,000 bph version of the 2834

All hand fitting and dimensions are the same between the 28,800 and 36,000 bph versions.

Further, all parts, except the second wheel (#227), escape wheel (#705), balance assembly (# 721) and hack lever (#9433) are common between the 28,800 and 36,000 bph versions. (Even the mainsprings, a fact borne out by the Bestfit catalog.)



So apparently they did dabble in hi-beat movements in the 70's, although they are all long discontinued, quite rare, and the odds of one showing up in a rep is highly unlikely. Maybe they are some movements that have been rebuilt with older 2838 main plates since they are otherwise identical to the standard movements.

 

[d4m.test]

KBH: I had the same experiences when I Googled variations of "2838" and so forth. Maybe it's a misprint; anyhoots, here's some pics of the movement that I'll also make as a new post. The bluish pics were shot while using a flashlight. dave:

I posted this in the OP itself on my question "What is a 2838 movement?" To reach a larger segment, I'm also posting it here w/ the movement pics. The blue pic is one taken with a flashlight as well. Hope this shed some light (pun intended) on the A 2838 movement mystery. dave:

Addenda:

I didn't realize this would end up as a "merged post." Sorry about that.

dave

 

[cybee]

That looks like a DG movement to me.

 

[pallan]

That looks like a DG movement to me.

Yea, definitely not an ETA that's for sure. Resembles the 2813 without the red paint on the wheels

 

[boostin20]

Yea, definitely not an ETA that's for sure. Resembles the 2813 without the red paint on the wheels

Yep, that's a hangzhou mov't he posted, but not to be confused with what KBH and I were talking about.

 

[erath6870]

just pulled this from a watch i got in m2m

 

[Luthier]

Did your mom ever teach you, how to use MACRO mode on your camera?

 

[cybee]

Ranfft says the 2838 was made 1974-1975 ...A 40 year old movement? hwell:

 

[KBH]

Ranfft says the 2838 was made 1974-1975 ...A 40 year old movement? hwell:

And that was discussed in this thread 5 months ago.

 

[cybee]

And that was discussed in this thread 5 months ago.

Who reads about things that happened 5 months ago? :lol:

 

[KBH]

Who reads about things that happened 5 months ago? :lol:

Who necro posts without reading what he's posting to? At least you're not just bumping up your post count.



Or, are you?:clubbed:

 

[cybee]

At least you're not just bumping up your post count.



Or, are you?:clubbed:

I figure I can steal one more post out of this thread before it gets obvious :mousepanic: