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WristBuzz›Brands›Brellum

Brellum

Small independent brand from the Swiss Jura, started in 2016 by fourth-generation watchmaker Sébastien Muller. Every Brellum is a COSC-certified chronometer, production tops out at 299 watches a year, and they're sold direct, without retailers.

Founded2016
HeadquartersPorrentruy, Jura, Switzerland
FounderSébastien Muller
OwnerIndependent, founder-owned
WristBuzz Articles39
Brellum

Photo: Fratello · Yesterday

2016Founded
299Watches a year, max
COSCEvery watch
DirectNo retailers
39WristBuzz Articles

The Brellum Story

Sébastien Muller is the fourth watchmaker in his family. His great-grandfather Emile Muller opened his first workshop in 1910, making watches during the week and taking the train to Geneva or Zurich at weekends to meet clients. Sébastien spent more than 25 years in the industry himself, as product, production and quality director for watch companies, before deciding at 42 to make watches under his own name.

Brellum started in 2016 with the Duobox 42 Chronometer. The idea hasn't changed since: classic, retro-flavoured chronographs, every one of them a COSC-certified chronometer with its own certificate, made in small batches of at most 299 watches a year. The brand sells direct from its website, with no distributors or retailers, which keeps prices in check. Prices are in Swiss francs.

The range is built on proven Swiss movements, modified and certified. The Duobox 39 uses the BR-110, based on La Joux-Perret's column-wheel L110. The Pandial Power Reserve runs the BR-750RM, based on the Valjoux 7750, and the new Duobox 39 TC Moonphase has the BR-751, based on the full-calendar Valjoux 7751. Most releases are limited editions of a few dozen pieces.

Today's catalogue has four families: the Duobox (now also in 39mm), the sporty Pandial 43, the Pilot 42 and the triple calendar TC Moonphase. Prices on the brand's site run from CHF 3,190 (about €3,400) for a Duobox 39 to CHF 3,890 (about €4,150) for the Duobox 39 TC Moonphase.

Iconic Collections

2016
Duobox
The first Brellum: a retro two-register chronograph, launched at 42mm. Since 2024 also as the Duobox 39 (39.5mm) with the BR-110 column-wheel chronograph, from CHF 3,190 (about €3,400).
2018
Pandial 43
A sportier 43mm chronograph line. The Pandial Power Reserve uses the BR-750RM (Valjoux 7750 base) and costs CHF 3,390 (about €3,650); the Marina Tricompax starts at CHF 3,490.
2026
Pandial Power Reserve Chronometer LE Black ↗
An all-black steel Pandial Power Reserve, limited to 33 pieces, CHF 3,390.
2020
Pilot 42
A pilot's watch with a power reserve indicator, in blue, silver or black. CHF 3,390 (about €3,650). GMT versions followed from 2023.
2026
Duobox 39 TC Moonphase
Triple calendar with moonphase on the BR-751 (Valjoux 7751 base), 39mm steel, limited to 46 pieces. CHF 3,890 (about €4,150).
2018
Wyvern
A line that included the Wyvern Manufacture 5 Days limited editions (2018) and the Wyvern GMT Chronometer (2021).

Heritage Timeline

1910
Great-grandfather Emile Muller opens his first watchmaking workshop
2016
Sébastien Muller founds Brellum with the Duobox 42 Chronometer
2017
Duobox 42 Power Reserve limited editions
2018
Pandial 43 collection, Wyvern Manufacture 5 Days and the first Duobox TC Moonphase
2020
Pilot 42 Power Reserve Chronometer collection
2021
Wyvern GMT Chronometer
2022
Pandial 43 DD limited editions
2023
Pilot 42 GMT limited editions
2024
Duobox 39 collection and Pandial 43 Marina Bicompax
2025
Pandial 43 Marina Tricompax and Pandial 43 Power Reserve LE
2026
Ten years of Brellum: Duobox 39 Ice Blue Mother of Pearl, Pandial Power Reserve LE Black and Duobox 39 TC Moonphase

WristBuzz exclusives

Brellum Duobox 39 Triple Calendar Moonphase Chronometer Arrives in Blue
Exclusive
Brellum Duobox 39 Triple Calendar Moonphase Chronometer Arrives in Blue
Nov 14, 2026
Brellum Goes Full Black: The Pandial Power Reserve Chronometer LE Black Is Limited to Just 33 Pieces
Exclusive
Brellum Goes Full Black: The Pandial Power Reserve Chronometer LE Black Is Limited to Just 33 Pieces
Oct 3, 2026

Latest Brellum News

The Brellum Duobox 39 Triple Calendar Moonphase Chronometer Debuts In Blue
Fratello
The Brellum Duobox 39 Triple Calendar Moonphase Chronometer Debuts In Blue
Yesterday
First Look - The Brellum Duobox 39 TC Moonphase Chronometer
Monochrome
First Look - The Brellum Duobox 39 TC Moonphase Chronometer
Yesterday
First Look - The New Steel Brellum Pandial Power Reserve Chronometer LE Black
Monochrome
First Look - The New Steel Brellum Pandial Power Reserve Chronometer LE Black
Oct 2, 2026
There Are Only 33 Of These: Introducing The Black-Dial Brellum Pandial 43 Power Reserve LE Chronometer
Fratello
There Are Only 33 Of These: Introducing The Black-Dial Brellum Pandial 43 Power Reserve LE Chronometer
Oct 2, 2026
Hands-On: The Ice-Blue Brellum Duobox Triple Calendar Moonphase
Fratello
Hands-On: The Ice-Blue Brellum Duobox Triple Calendar Moonphase
Mar 27, 2026
Hands-On: The Brellum Duobox 39 Ice Blue Mother Of Pearl Chronometer
Fratello
Hands-On: The Brellum Duobox 39 Ice Blue Mother Of Pearl Chronometer
Feb 16, 2026
First Look - The Brellum Duobox 39 Ice Blue Mother-of-Pearl Chronometer
Monochrome
First Look - The Brellum Duobox 39 Ice Blue Mother-of-Pearl Chronometer
Feb 13, 2026
Introducing - The Brellum Pandial Power Reserve Black Titanium Chronometer LE
Monochrome
Introducing - The Brellum Pandial Power Reserve Black Titanium Chronometer LE
Nov 28, 2025
Hands-On: The New Brellum Pandial Power Reserve Black Titanium LE Chronometer
Fratello
Hands-On: The New Brellum Pandial Power Reserve Black Titanium LE Chronometer
Nov 28, 2025
Hands-On With The New Brellum Pandial Power Reserve Chronometer LE
Fratello
Hands-On With The New Brellum Pandial Power Reserve Chronometer LE
Nov 3, 2025
First Look - The New Brellum Pandial Power Reserve Chronometer LE, a Greatest-Hits of the Brand’s Catalogue
Monochrome
First Look - The New Brellum Pandial Power Reserve Chronometer LE, a Greatest-Hits of the Brand’s Catalogue
Oct 31, 2025
Introducing - The New Brellum Pandial Marina Tricompax Chronometer
Monochrome
Introducing - The New Brellum Pandial Marina Tricompax Chronometer
Jun 13, 2025
View all 39 articles

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