Jaeger-LeCoultre · Geophysic
Strap for Geophysic True Second Stainless Steel / Silver / Alligator
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
20mm
Lug width20 mm
Case diameter40 mm
Reference8018420 (aka: Q8018420)
FamilyGeophysic
MovementJaeger-LeCoultre caliber 770 hours, jumping seconds | date
Year2015/9/30
CaseStainless Steel
Straps for the Geophysic 8018420 (aka: Q8018420)
Selected for the 20 mm lug width · workshop selection
Black Rubberized Alligator Strap with Red Tribal Stitching€185
Matte Dark Gray Alligator Strap€195
Matte Black Alligator Strap — Minimal Stitching€149
Vintage Brown Calfskin Strap — Natural Patina€98
Hammered calfskin strap in cuoio€98
The Geophysic 8018420 (aka: Q8018420), seen from the bench
The Jaeger-LeCoultre Geophysic features the caliber 770 with hours, jumping seconds and date function. The movement has the characteristic seconds hand that advances in discrete steps rather than continuously. The jumping seconds function derives from the tradition of observatory watches used for precision scientific measurements.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only