IWC Vintage Collection

Most IWC Vintage Collection references take a 22 mm watch strap: 18 of 35. The lug width follows the case size: 41 mm case → 18 mm, 43 mm case → 22 mm, 44 mm case → 18 mm and 46 mm case → 18 mm.

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IWC Vintage Collection lug width by case size

35 references measured. Updated 2026-10-29.

Case	Lug width	References	Watch strap attachment	For example
41 mm	18 mm · 20 mm on 1	4	—	IW5461-03, IW5461-04, IW5461-05
43 mm	22 mm	11	—	IW3233-01, IW3233-03, IW3233-04
44 mm	18 mm · 22 mm on 6 · 21 mm on 1	15	—	IW3254-01, IW3254-04, IW3254-05
46 mm	18 mm · 22 mm on 1	5	—	IW5448-03, IW5448-04, IW5448-05

References that take a different watch strap

IW5461-01: 20 mm, not the 18 mm of most 41 mm cases
IW3231-01: 22 mm, not the 18 mm of most 44 mm cases
IW3231-03: 22 mm, not the 18 mm of most 44 mm cases
IW3231-04: 22 mm, not the 18 mm of most 44 mm cases
IW3231-05: 22 mm, not the 18 mm of most 44 mm cases
IW3231-07: 22 mm, not the 18 mm of most 44 mm cases
IW3231-10: 22 mm, not the 18 mm of most 44 mm cases
IW3254-03: 21 mm, not the 18 mm of most 44 mm cases
IW5448-01: 22 mm, not the 18 mm of most 46 mm cases

Questions about the IWC Vintage Collection

Do all IWC Vintage Collection case sizes take the same watch strap?

No. The lug width changes with the case size: the 43 mm case takes 22 mm, the 44 mm case takes 18 mm and the 46 mm case takes 18 mm. Check your case diameter before you buy.

Can two IWC Vintage Collection watches with a 44 mm case take different watch straps?

Yes. Of the 15 IWC Vintage Collection references with a 44 mm case, 8 take 18 mm, 6 take 22 mm and 1 take 21 mm. The reference number decides, not the case size alone.

Every IWC Vintage Collection reference

Other IWC families

Inside each one the lug width often changes: it is the reference that decides.

All IWC families → · Why the size changes inside a family →