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