Antique · Hebdomas · 8-Day Exposed Balance
Hebdomas 8-Day
- Hand-Wound
- 8-Day
- Hebdomas
- Exposed balance
- Antique
- Swiss
One piece · available in store
Serviced & tested Honest vintage condition Inspect in store
An antique Hebdomas watch: a Swiss hand-wound piece with an 8-day power reserve and the famous exposed balance wheel visible on the dial, with a white enamel chapter and Roman numerals. One original antique, available to buy in store in Chennai.
At a glance
Hebdomas is the Swiss maker famous for 8-day watches with the balance wheel visible on the dial. This antique example has the open balance at 12, a white enamel chapter with raised Roman numeral cartouches and red decoration, and a hand-wound 8-day movement. One original early-1900s piece, available at Clock House in north Chennai. Ask us for the price.
Specifications
- Brand
- Hebdomas (Swiss Made)
- Type
- Antique hand-wound 8-day watch
- Movement
- Swiss hand-wound, 8-day power reserve, with a visible (exposed) balance wheel on the dial (confirmed in store)
- Winding
- Manual hand-wound; runs about 8 days on a full wind
- Dial
- White enamel chapter with raised Roman cartouches and red decoration; open balance at 12
- Case
- Metal (confirmed in store)
- Era
- Antique, early 20th century
- Condition
- Honest antique wear; enamel and movement checked in store
More about this Hebdomas 8-Day
The 8-day watch with a visible balance
Hebdomas (from the Greek for week) made its name with watches that run eight days on a wind and show the balance wheel oscillating through an opening in the dial. This antique example has that signature open balance at 12 and a white enamel chapter ring with raised Roman numeral cartouches.
We check the enamel, the movement and the long power reserve in store and tell you honestly what it is.
A piece of horological history
The exposed balance was both a marketing flourish and a genuine pleasure to watch. These early-1900s Hebdomas pieces are distinctive, collectible antiques.
The Hebdomas story behind this watch
Eight days and an open heart
The combination of a week-long power reserve and a visible beating balance made Hebdomas one of the most recognisable names of the early wristwatch and pocket-watch era.
Value comes down to the condition of the enamel and a clean, running movement.
Eight days and an open heart: the antique Hebdomas with its visible balance wheel.
Condition & authenticity
Honest vintage, openly described
- Honest antique wear: enamel can carry hairlines or small chips with age; we point these out.
- We check that the hand-wound 8-day movement winds and runs and that the exposed balance oscillates freely.
- The strap is a modern replacement. The case metal is confirmed in person.
- This is an antique and was never water resistant; keep it dry.
In detail
Up close
Questions about the Hebdomas 8-Day
Good to know
What is the Hebdomas 8-Day?+
It is an antique Swiss hand-wound watch that runs eight days on a wind and shows the balance wheel through an opening in the dial. Hebdomas made its name with these exposed-balance 8-day watches from the early 1900s.
How often do you wind it?+
About once a week. A full wind gives roughly eight days of running, which is what the name Hebdomas (week) refers to.
How much is an antique Hebdomas and what is the price?+
Value depends on the condition of the enamel dial and the movement. We do not publish the price online. Message us on WhatsApp or visit the shop for the price and an honest quote.
Where can I buy an antique watch in Chennai?+
We sell antique and vintage watches in store at Clock House in Kodungaiyur, north Chennai. This Hebdomas is in stock now. Message us on WhatsApp or visit the shop.
Can you service an antique 8-day watch?+
Yes. We service and restore antique watches, taking care with fragile enamel dials and exposed-balance movements, at our Kodungaiyur workshop. We quote the work before we begin.
Interested in this Hebdomas 8-Day?
One piece, in store in Vyasarpadi, north Chennai. Message us and ask for a quote, or come in to see it.