Hebdomas - Vintage - Men - 1900-1949

Hebdomas 8 Days – Swiss Made – Manual Winding – Open Heart – NOS (New Old Stock)

Offered for auction is an elegant Hebdomas 8 Days Swiss mechanical wristwatch, preserved in New Old Stock (NOS) condition.

Hebdomas is one of the most renowned names in Swiss horology associated with long power reserve mechanical movements. Since the end of the 19th century, the brand has earned international recognition for its innovative 8-day movements, combining technical ingenuity with a distinctive design that has become iconic among collectors.

This timepiece faithfully preserves the classic Hebdomas identity, featuring an asymmetrical dial layout, an exposed balance wheel and finely decorated movement components inspired by the historic models that established the reputation of the brand.

Features
Brand: Hebdomas
Swiss Made
Mechanical hand-wound movement
Approximately 8-day power reserve
Open Heart display at 9 o'clock, revealing the oscillating balance wheel
White enamel-style dial
Arabic numerals
Gold-tone polished case
Decorative engraved movement plate
Elegant Royal Sceptre-style winding crown
Brown genuine leather strap
"8 Jours" / "8 Days" markings on the dial
Decorative movement

One of the highlights of this watch is its beautifully engraved movement plate, richly decorated with floral motifs, traditional award-style medallions, and the classic inscriptions:

ANCRE – 8 JOURS – BREVETÉ – GARANTI – SWISS

The engraved medallions are believed to represent distinctions or awards received at international exhibitions, reflecting a decorative tradition widely adopted by prestigious Swiss watchmakers to celebrate their craftsmanship and technical achievements.

The elaborate engraving and ornamental details enhance the movement's visual appeal and pay tribute to the historic heritage of the Hebdomas brand.

Condition

This watch is offered in New Old Stock (NOS) condition.

It has never been worn and has been carefully preserved over the years. The case, dial, movement and engravings remain in excellent cosmetic condition, showing only possible minimal storage marks consistent with long-term storage.

The movement winds smoothly and operates correctly. After a full winding, it provides an impressive approximately 8-day power reserve, a remarkable feature that distinguishes Hebdomas from conventional hand-wound watches requiring daily winding.

Historical significance

Hebdomas became internationally known for producing long power reserve mechanical watches that combined technical innovation with elegant aesthetics. The characteristic asymmetrical dial, the visible balance wheel, the beautifully engraved movement and the extended autonomy remain defining elements of the brand and continue to attract collectors around the world.

This example perfectly embodies those qualities, offering both mechanical charm and historical inspiration in an unworn condition.

Collector's note

A rare opportunity to acquire an authentic Swiss Hebdomas 8 Days in NOS (New Old Stock) condition. Combining the legendary eight-day power reserve, the distinctive Open Heart display, refined decorative engravings and classic Swiss craftsmanship, this watch represents an elegant addition to any collection of fine mechanical timepieces.

The watch will be carefully packed and shipped with full insurance and tracking.