IWC Cal. 83 – Copper Dial with Rare “Rainbow” Patina (1946)

IWC has produced an extraordinary range of wristwatches since its early years, from refined dress pieces to robust aviation instruments. This 1946 example represents the brand at its most elegant.

Crafted in 18k yellow gold, the well-proportioned 34 mm case features a rare and beautifully shaped lug design, giving the watch a distinctive and refined silhouette. The true highlight, however, is the original copper-colored sub-seconds dial, which has developed a unique “rainbow” patina over time — a rare and highly collectible aging effect that makes this piece truly one of a kind.

Inside beats the legendary IWC Cal. 83, one of the manufacture’s most respected manually wound movements, known for its durability and precision.

A rare combination of condition, patina, and classic IWC craftsmanship — a vintage piece with real character.

- wrist size in our picture is 18cm circumference -

DIAL:

original never touched copper colored dial in good condition
unique "rainbow" patina all over the dial
original hands and crown

STRAP & BUCKLE:

original brown IWC leather strap fitting up to 20 cm wrist size / 2 mm thick
original IWC gold buckle

CASE:

greatoverall condition, showing minor trace of wear
3- body 18k yellow gold case with snap-on case back
34 mm (without crown) / 41 mm (lug-to-lug) / 18 mm (between lugs) / 8 mm thick
year: 1945
total weight: 42 g

MOVEMENT:

International Watch Co. Cal. 83
17 jewels, 18000 A/h, 44 hours power reserve
professionally serviced in 04/2026
+25 sec/d / 260°

BOX & PAPERS:

GOLDAMMER certificate of authenticity & service documentation card
GOLDAMMER box

GOLDAMMER REFERENCE: #1530

IWC Watches

IWC Cal. 83 Copper Dial 1946