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Jaeger-LeCoultre

Jaeger-LeCoultre Geophysic Tourbillon Universal Time Q8126420

The Jaeger-LeCoultre Geophysic Tourbillon Universal Time (reference Q8126420) is a watch.

Specifications

Case

Reference
Q8126420
Collection
Geophysic

Dial versions

This reference was made with these dials and finishes.

  • Q8126420

How it compares within the Geophysic family

Side by side with other references in the same collection, from the catalog.

ReferenceSizeMaterialDialCaliberYears
Q8126420 (This watch)—————
Q8002520—Pink gold———
Q8008520—Stainless steel——2014–
Q8012520—Pink gold———
Q8018120—Stainless steelSilver——
Q801842039.6 mmStainless steelSilver7702015–
Q801848039.6 mmStainless steelBlue7702015–
Q8102520—Pink gold———
Q8108420—Stainless steel——2015–

About the Geophysic family

The original Geophysic Chronometer was introduced in 1958 for the International Geophysical Year, with an anti-magnetic, shock-resistant case. Jaeger-LeCoultre reissued it in 2014 as the Geophysic 1958.

In 2015 the brand added the Geophysic True Second, whose caliber 770 makes the seconds hand jump in whole seconds, and the Geophysic Universal Time with a world-time display. The catalog lists stainless steel, pink gold and platinum references. Dealers identify the model and metal and check the strap and papers.

Catalog facts checked October 2026.