Jaeger-LeCoultre Master Extreme 1758121
The Jaeger-LeCoultre Master Extreme 1758121 takes a 20 mm watch band.

Jaeger-LeCoultre · Master Extreme
- Lug width
- 20 mm
- Case diameter
- 42 mm
- Reference
- 1758121
- Family
- Master Extreme
- Case material
- Acciaio
- Model
- Master Compressor Chronograph Stainless Steel Bracelet
- Year
- 2015
Bands that fit
Cut and stitched in Milano, in the width this watch takes.
Will a strap close on your wrist?
Set for this watch: 42 mm of case and 20 mm between the lugs. Add your wrist and see where a standard strap would close.
mm
Filled in with the case diameter, which is what we hold for this reference. Measure the watch tip to tip for the exact answer: it is usually a few mm more.
Enter your wrist measurement to see whether a standard 75/115 mm strap closes on you, and where.
Sizing notes
- 20 mm is the gap between the lugs, so a 20 mm band goes in without adapters. Whether it sits flush against a 42 mm case depends on how that case is shaped.
- Inside the Master Extreme family the lug width is not one number: it runs 20, 21, 22 mm. This reference is the 20 mm one, so a band bought for another Master Extreme may not fit it. Why the size changes inside a family →
- 20 mm is one of the common sizes: 15,081 of the 41,485 watches measured take it, which is why it is the width most bands are cut in. Every watch that takes 20 mm →
Other Master Extreme references
- Master Compressor Geograpic Stainless Steel1718470
22 mm - Master Compressor Dualmatic Stainless Steel1738470
21 mm - Master Compressor Chronograph Pink Gold Bracelet1752121
20 mm - Master Compressor Chronograph Pink Gold Bracelet Grey1752140
20 mm - Master Compressor Chronograph Pink Gold1752421
20 mm - Master Compressor Chronograph Pink Gold Grey1752440
20 mm
Same lug width, other Jaeger-LeCoultre lines
- Master Ultra Thin Moon 34 Pink Gold / Diamond / Eggshell / Alligator1252501
20 mm - Master Ultra Thin Moon 34 Pink Gold / Eggshell / Alligator1252520
20 mm - Master Ultra Thin Moon 34 Stainless Steel / Diamond / Silver / Alligator1258401
20 mm - Master Ultra Thin Moon 34 Stainless Steel / Silver / Alligator1258420
20 mm - Master Ultra Thin Calendar White Gold1263520
20 mm - Master Ultra Thin Small Second Pink Gold Diamond1272501
20 mm
Black Rubberized Alligator Strap with Red Tribal Stitching
Matte Dark Gray Alligator Strap
Matte Black Alligator Strap — Minimal Stitching
Vintage Brown Calfskin Strap — Natural Patina
Hammered calfskin strap in cuoio