IWC Cal. 89 Shark Fin 18k Rose 1960

Mid-century design meets modern presence.

This rare IWC Caliber 89 dress watch from 1960 offers an exceptional blend of understated sophistication and striking case architecture. Crafted in 18k rose gold, the standout feature is undoubtedly the sculptural “shark fin” lugs, lending a bold, architectural touch to the clean, minimalist aesthetic.

At 37 mm, this piece was considered oversized in its time — and remains perfectly proportioned for modern tastes today. The white/silver dial with a classic 12-3-6-9 layout and original hands and crown has developed a subtle, even patina that adds vintage character without compromising legibility.

Powered by the legendary IWC Cal. 89, a hand-wound movement celebrated for its robustness and precision, this timepiece is more than a design object — it’s a mechanical icon.

- wrist size in our picture is 18cm circumference -

DIAL:

• original never touched white/silver dial in good condition
• original hands and crown
  
• some slightly and even developed patina throughout the dial

STRAP & BUCKLE:

• cognac brown GOLDAMMER Kardinal leather strap fitting up to 20 cm wrist size / 2 mm thick
• rose gold plated GOLDAMMER buckle

CASE:

• excellent overall condition, showing minor traces of use
• 3- body 18k rose gold case with snap-on case back from case maker Les Fils de Jules Blum
• 37 mm (without crown) / 42 mm (lug-to-lug) / 18 mm (between lugs) / 9.4 mm thick
• year: 1960
  
• total weight: 40 g

MOVEMENT:

• International Watch Co Cal. 89 - manual
• 17 jewels, 18000 A/h, 44 hours power reserve
• professionally serviced in 07/2025
• -5 sec/d / 350°

BOX & PAPERS:

• GOLDAMMER certificate of authenticity & service documentation card
• GOLDAMMER box

GOLDAMMER REFERENCE: #1093