IWC Ingenieur IW3236-01
The IWC Ingenieur IW3236-01 takes a 21 mm watch band.

IWC · Ingenieur
- Lug width
- 21 mm
- Case diameter
- 46 mm
- Reference
- IW3236-01
- Family
- Ingenieur
- Case material
- Acciaio
- Model
- Ingenieur Automatic Mission Earth
- Year
- 2009 - 2011
Will a strap close on your wrist?
Set for this watch: 46 mm of case and 21 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
- 21 mm is the gap between the lugs, so a 21 mm band goes in without adapters. Whether it sits flush against a 46 mm case depends on how that case is shaped.
- 21 mm is an odd size: most ready-made bands are made in even widths, so this reference needs one cut to measure or a band that runs in odd sizes. Why some watches take odd sizes →
- Inside the Ingenieur family the lug width is not one number: it runs 14, 18, 19, 20, 21, 22 mm. This reference is the 21 mm one, so a band bought for another Ingenieur may not fit it. Why the size changes inside a family →
- 21 mm is not a common size: only 2,956 of the 41,485 watches measured take it (7.1%), so ready-made choice at this width is narrower than at 20 or 22 mm. Every watch that takes 21 mm →
Other Ingenieur references
- Ingenieur 666A Stainless Steel / Ivory666A
integrated - Ingenieur 666AD Stainless Steel / Black666AD
18 mm - Ingenieur SL Jumbo Stainless Steel / BlackIW1832-01
18 mm - Ingenieur Automatic Carbon Performance Ceramic YellowIW3224-01
20 mm - Ingenieur Automatic Carbon Performance Ceramic RedIW3224-02
20 mm - Ingenieur Automatic Carbon Performance Ceramic GreenIW3224-04
20 mm
Same lug width, other IWC lines
- Pilot's Watch Antoine De Saint Exupery Power Reserve PlatinumIW3201-01
21 mm - Pilot's Watch Antoine De Saint Exupery Power Reserve White GoldIW3201-02
21 mm - Pilot's Watch Antoine De Saint Exupery Power Reserve Rose GoldIW3201-03
21 mm - Pilot's Watch Antoine De Saint Exupery Power Reserve Stainless SteelIW320104
21 mm - Vintage Pilot’s Watch Hand-Wound 1936 Rose Gold / SilverIW3254-03
21 mm - Pilot's Watch UTC Antoine De Saint Exupery White GoldIW3261-02
21 mm