IWC GST Aquatimer IW3290-02
The IWC GST Aquatimer IW3290-02 takes a 20 mm watch band.

IWC · GST Aquatimer
- Lug width
- 20 mm
- Case diameter
- 42 mm
- Reference
- IW3290-02
- Family
- GST Aquatimer
- Case material
- Acciaio
- Model
- Aquatimer Automatic Stainless Steel / Black / Bracelet
- Year
- 2014 - 2022
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 GST Aquatimer family the lug width is not one number: it runs 18, 20, 21, 22 mm. This reference is the 20 mm one, so a band bought for another GST Aquatimer 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 GST Aquatimer references
- Aquatimer Automatic Stainless Steel / BlueIW3288-01
20 mm - Aquatimer Automatic Stainless Steel / BlackIW3288-02
22 mm - Aquatimer Automatic Stainless Steel / Black / BraceletIW3288-03
22 mm - Aquatimer Automatic Stainless Steel / Black / RubberIW3290-01
21 mm - Aquatimer Automatic Stainless Steel / Silver / RubberIW3290-03
20 mm - Aquatimer Automatic Stainless Steel / Silver / BraceletIW3290-04
22 mm
Same lug width, other IWC lines
- 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 - Ingenieur Automatic AMG Black Series CeramicIW3225-04
20 mm - Ingenieur Automatic Stainless Steel / BlackIW3227-01
20 mm - Ingenieur Automatic AMG / BraceletIW3227-02
20 mm
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