Eterna-Matic - KonTiki - χωρίς τιμή ασφαλείας - Άνδρες - 1970-1979

Eterna-Matic KonTiki 20 – Black Patina Dial – Solid Gold KonTiki Medallion – Vintage Swiss Automatic

Offered for auction is a beautiful and collectible Eterna-Matic KonTiki 20, a vintage Swiss automatic watch with a strong nautical identity and great historical charm.

This example features a robust 38 mm stainless steel case, a black factory dial with attractive natural age patina, and the famous KonTiki emblem in solid gold on the case back. The watch is fitted with its original stainless steel bracelet, including the signed KonTiki clasp, giving the piece a very complete and authentic vintage presence.

A charismatic Swiss collector’s watch, combining Eterna’s technical heritage with the adventurous spirit of one of the most iconic expedition-inspired watch lines.

Technical Details

Brand: Eterna
Model: Eterna-Matic KonTiki 20
Origin: Swiss Made
Case material: Stainless steel
Case diameter: 38 mm
Case back: Stainless steel with solid gold KonTiki medallion
Crystal: Mineral glass
Dial: Original black factory dial with natural age patina
Movement: Swiss automatic Eterna movement
Functions: Hours, minutes, seconds and date
Bracelet: Original stainless steel bracelet
Clasp: Signed KonTiki clasp
Wrist size: Fits wrists up to approximately 21 cm
Box: Generic watch box

Condition Report

Overall grade B – The watch shows signs according to age.

The stainless steel case presents visible wear, small marks and scratches consistent with use and age, while still keeping a strong and attractive vintage shape. The case back is especially appealing, featuring the famous KonTiki medallion in solid gold.

The black factory dial has developed a beautiful natural patina over time, giving the watch a unique collector’s character. The indexes, hands, date window and printed details remain highly attractive, with the aging adding depth and authenticity to the piece.

The original stainless steel bracelet shows normal vintage wear and fits wrists up to approximately 21 cm. The mineral glass may show signs of use.

Water resistance has not been tested and is not guaranteed.

Please examine all photographs carefully, as they form an important part of the description.

Story & Heritage

The Eterna KonTiki is one of the most important and recognizable lines in the history of the brand. Inspired by Thor Heyerdahl’s legendary Kon-Tiki expedition across the Pacific, the collection became a symbol of endurance, exploration and maritime adventure.

Eterna itself holds a special place in Swiss watchmaking. The brand is celebrated for its innovation in automatic movements, especially the famous Eterna-Matic system, which used ball bearings to improve rotor efficiency and reliability. The five small dots in the Eterna logo became a symbol of this technical achievement.

The KonTiki models carried this spirit into a more adventurous world. With robust stainless steel cases, strong water-resistance ambitions for their time, bold dials and the famous case-back medallion, these watches were designed for people who valued precision, durability and exploration.

This particular example has a wonderful vintage personality. The black dial has aged naturally, creating a speckled patina that cannot be reproduced artificially. Combined with the original bracelet and the solid gold KonTiki medallion on the back, the watch has the presence of a true collector’s piece.

A beautiful vintage Eterna-Matic KonTiki 20, ideal for collectors who appreciate Swiss automatic watches with real history, character and charm.

Internal Reference Number - FLO 177