rdenney
371
Several Lemania movements have continuous chronograph minutes.
Particularly, in my experience, the 1340 and it’s derivatives. For example, the Ebel version with three subdials—their caliber 137—used an indirectly driven minutes counter with continuous motion.
Their caliber 139 provides a central minutes counter. But it does not have its own clutch as with the Habring, but is still indirectly driven by the chronograph seconds hand.
I would show you a picture, but for some reason, the iPhone app’s uploaded pictures are never appearing.
—Rick
The Word From Habring—Repost w/diagrams...
Hello fellow Purists! (And would some kind moderator please take down the original post? Thanks!) Last week I posted some feelings about the movement of the chrono minute hand—specifically my preference for the semi-instantaneous "jump" or some, rather th...
Thank you for such an insightful post,
Its easy to take for granted the features on the watch. Eg "why can't I just have a 60m subdial counter?". It makes sense when you start putting yourself in the watchmaker's shoes, and start imagining the designs for yourself - which in this case, the tho...
Well, you are WAY ahead of me, Skye. You'll be happy to see what I'll be able to put up as an addendum later today as I'm just completing a back 'n forth with Richard
to make sure that I understand this whole business 100%. (As you seem to, already!) More later, then… Fred
Several Lemania movements have continuous chronograph minutes.
Particularly, in my experience, the 1340 and it’s derivatives. For example, the Ebel version with three subdials—their caliber 137—used an indirectly driven minutes counter with continuous motion. Their caliber 139 provides a central minutes counter. But ...
Many thanks for this, Rick. One trick I've stumbled onto (I'm working on a MacbookPro) is to open the photo on the desktop (mine opens automatically in Preview)
and pull down the Tools menu to Resize. Most of my photos are large (for detail) so I cut the size to 1/2, and then before exiting I take a screen shot of the photo (shft/cmnd/4), cropping it however I want (or leaving it as is - as soon as you release th...
Here’s a picture
Of the Ebel 1911 BTR, caliber 139, with continuous central minutes. The minutes counter uses a three-pointed hand moving over a 120-degree dial scale. —Rick ...
Thanks for sharing Rick,
You're correct that there is no distinct mechanical "clutch" (such as a horizontal or vertical clutch), but instead I believe these work via a direct friction coupling (as a "crude" clutch, in a way), something like this in the following image of a Lemani...
It never occurred to me that the minute counter reset hammer was on the dial side.
I’ve studied these movements with a loupe, but not the dial side and not with disassembly. But there is a reset hammer only for the chronograph seconds hand, plus its famous Delrin brake. Thank you for the explanation. —Rick
I could not agree more
The detailed technical discussions aside, what shines thru for me is Richard Habring’s generosity of time and spirit in answering this question. I have a Habring Erwin, and have communicated with Maria before, and the couple’s kindness and friendliness is...