Jump to content

Mimo Military-ish


Recommended Posts

IMG_1039.thumb.jpeg.46eccc08d8b0b60550d215924e14e362.jpeg

..because everyone likes visuals here- just off the bench-  Mimo AS cal 1130. It was an country auction house purchase nobody paid any attention. It took all of a day to fix up start to finish. I only needed to remove the gummy oil and the wrist Rauchkäse. My obligatory new mainspring though there was alloy inside. Hand rubbed the old crystal...

IMG_1024.thumb.jpeg.67f3189af32b4419fcdc983792b2dfd2.jpeg

 

IMG_1025.thumb.jpeg.c032ace8cc89464e3a19c7350a394717.jpeg

IMG_1027.thumb.jpeg.45e8b83c0e1bd0b250245e6c0b6f486e.jpeg

IMG_1026.thumb.jpeg.743d28ac1f067d1549b3051558220564.jpeg

IMG_1028.thumb.jpeg.40300f62fa18727f811ff3a5ba3af880.jpeg

IMG_1029.thumb.jpeg.5b56098c391896666e3a147e1669553f.jpeg

IMG_1037.thumb.jpeg.67f1511012c42f13a7dabaa39dcf9332.jpeg

I was quite impressed with the movement and the case here. Hefty and the way the screwback slides open...high quality. 

...Is it from a military batch? No markings on the case back so dunno....and I don't know too much else other than prices for these things are all over the place. I paid less than 100 quid to get it to the states from UK. Imma wear it!

 

Edited by rehajm
  • Like 1
Link to comment
Share on other sites

22 minutes ago, RichardHarris123 said:

Do you know anything about the bar across the centre wheel? 

...not other than holds the movement in place, wedged between the movement and the case back like the internal case back of a Smiths W10...and suspect it might have something to do with the 'antimagnetic' claim. I saw similar Mimo where the bar is affixed to the plate with case screws but they were missing here and the ends of the bar sit in the screw holes quite solid. I'll mess with finding new case screws if it becomes an issue...

Edited by rehajm
Link to comment
Share on other sites

23 minutes ago, mikepilk said:

Lovely watch. Have a look here
 https://www.watchprosite.com/girard-perregaux/mimo-wwii-dienstuhr--a-closer-look/6.1004143.7068013/

Are there faint markings on the back? Could it be German military and the marks have been erased?

Looks like the radium is flaking

I looked hard with the microscope but couldn't see any sign of a a 'DxxxxH' stamping and given the original look of the case I don't think it was polished away...

...and yes - radium hands. Bad stuff and you can see the missing piece inside the crystal in the before photo. I take precautions but am not frightened of it, though I will pass on anything where its all turned to dust...

Edited by rehajm
Link to comment
Share on other sites

  • 4 months later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • The diameter is that of the ring - afaik, will have to look it up. “Wiggle room“ doesn‘t matter as long as the spring length is in the ball park.  Essential sizes of a mainspring are thickness, width and length. Diameter is just a hint if you can push into the barrel directly or will need a winder, it is no property of the spring. Frank
    • Hi @Zendoc, I guess you're like me and you don't have a mainspring winder.  I searched GR mainspring for the AS 1686 mainspring and I now understand your dilemma. The exact one is discontinued. To answer you question more directly, I see two good alternatives for you: a) GR4485 with 1.60 x .10 x 280 x 8.5 ( I guess this one is the one you found): https://www.cousinsuk.com/sku/details/mainsprings-by-list-watch-pocket/GR4485 OR b) GR4477 with 1.60 x .095 x 320 x 9. https://www.cousinsuk.com/sku/details/mainsprings-by-list-watch-pocket/gr4477   As you know, the the AS 1686 spring is supposed to be 1.60 x .10 x 300 x 9. - both of the above will fit and you'll manage to insert them from the retention ring without need for a mainspring winder (provided you know how to do it). - GR4485 will give you more power (=higher amplitude), but less power reserve (due to shorter length) than the original. - GR4477 will give you the same power reserve as the original. However, a bit less power.   Personally, I'd take GR4477 for two reasons: 1. Well, the power reserve is better. 2. With modern lubricants and modern mainspring metal alloys, you tend to get a higher amplitude anyways. You'd maybe even end up with too much amplitude (knocking) if you go with the original size and use thin synthetic oils-- see discussion here: https://www.watchrepairtalk.com/topic/10580-omega-calt17-help/#comment-248101      
    • Your setup is correct. The smallest diameter of one pulley must correspond with the largest of the other one, else not speed variation. Frank
    • Haven't seen them before. 
×
×
  • Create New...