Omega 1378

Posts

3

Likes

0

Tim 2468

·Jul 17, 2026

Does anyone know which stem I need for omega 1378 outer stem it has the 210.001 eta
But is omega 1378
I bought a outer stem but doesn’t fit from cousins
Case number 195 0078.2 thread size tap eight

 

Posts

2,382

Likes

2,549

ErichKeane

·Jul 17, 2026

What part of it doesn't fit? That looks like the ones I see, a 1378-9100. According to Emmy watch/a bunch of listings it should actually be a tap 11.

Also, you say 'outer stem', but that in the picture doesn't look like a 2 piece stem?

 

Posts

3

Likes

0

Tim 2468

·Jul 17, 2026

Hi the split has broken on the one in pic
I need the outer stem as there is one part in watch and the outer stem as shown in pic is broke cal 1378

 

Posts

2,382

Likes

2,549

ErichKeane

·Jul 17, 2026

There is some language mis-match here. That is supposed to be the part that goes into the watch side. ARE you looking for a CROWN? The little knob that goes on the end of that?

 

Posts

3

Likes

0

Tim 2468

·Jul 17, 2026

Hi no I want the outer stem it’s a two part stem but the original one is broken where it joins the inner stem

 

Posts

2,382

Likes

2,549

ErichKeane

·Jul 17, 2026

Got it! Actually I was a bit confused, that stem photo LOOKS like it has the square part on the end, so it looked like the 1 piece stem.

Split stem seems to be 1378-9140 and 1378-9120 (outer and inner), but the listings I see list the former as tap-13.

I don't see any listings for 195.0078 on the publicly available lists I have, so I can't help more specifically than that.