loujo
458
A good article by SJXWatches tells the history
watchesbysjx.com
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The UN-33
Visible through the back is the UN-33, which is a proprietary Ulysse Nardin automatic movement combined with the patented calendar module – the same calibre found in the 1996 original.
The base movement has an interesting history: it was developed in 1995 by Lemania for Ulysse Nardin as well as Ebel, then in the last years of its heyday. Based on the Lemania cal. 1340, the movement was conceived to be a versatile movement with the ability to be adapted to various complications.
The result was the Ebel cal. 137 (or Lemania cal. 1350), which was a chronograph movement that Ebel used to replace the Zenith El Primero. And the other was the UN-33 in the Perpetual Ludwig. Another derivative was the Lemania cal. 1377, now known as the Breguet cal. 582 in Type XX chronograph, and later the cal. 583Q and 584Q.
And in 2012 Ulysse Nardin acquired the cal. 137 from Ebel, then and now in a long decline, renaming it the UN-150.
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Did UN (as GP did) also have some models using
Yes
