quattro[Moderator]
19409
“Shark fin” lugs
The IWC ref. 521 has a case design which I find wonderful.
Its
main feature is, of course, the
lugs, which have been called “
shark fin” lugs or sometimes “
ribbon” lugs.

The
characteristics of these
shark fin-shaped lugs have been
visually summarized excellently by
Goldammer (from which the two images below are borrowed).
They
belong to the
Angular +
Expanding type and clearly differ from the “Teardrop”, “Triangle” and “Spider” lugs.

Furthermore, there are
three slightly
different variants.

The
example shown on the
first image and
below belongs to the “
Classic Shark” category.

Its
black gilt dial features a very nice
signature.

The
case profile is
beautiful too.

The watch is powered by
hand-wound caliber 89.
credit: Benjamin Marcello
And here's a
different example with
lugs which belong to the “
Shark II” category (slightly longer) and with an
opaline dial featuring
four cardinal Arabic numbers.
credit: Goldammer
How do you
like these
lugs and these two
examples?
Do you have a favorite?
Thanks for looking.
Best, Emmanuel