JB is one of the labels the Richard Mille line runs on. Public dealer write-ups under it cover RM001 and RM53-01 tourbillons and the RM052-01 in three case colours, alongside one Roger Dubuis reference. Richard Mille is a separate supply chain from the Rolex line, with its own names, and a buyer arriving from a Submariner will not recognise any of them. Our own sample carries no listing under this label.
On this page
Is JB Factory still making watches?
A label used in public dealer write-ups on Richard Mille and Roger Dubuis references. No listing in our own sample carries it. This profile carries 2 reported brand lines, 2 signature references and 2 cited sources, with 4 open questions listed below.
What is JB Factory known for?
This page records 2 points of note for JB Factory, alongside 2 reported brand lines and 2 signature references, while what the trade repeats without a dated public document is kept separate further down the page.
- Richard Mille tourbillons
- A second label outside the Rolex-line names
Which brands does JB Factory build?
The trade associates the JB Factory label with 2 brand lines, listed below; the source for the mapping is cited at the foot of this page.
- Richard Mille, tourbillons in particular
- Roger Dubuis
Which models is JB Factory known for?
This profile lists 2 signature references for JB Factory, each resting on a listing observation or a cited test, with its basis noted beside it and its sources at the foot of the page.
- Richard Mille RM052-01 — Written about in three case colours under this label (Dealer article series naming this label, 2026)
- Richard Mille RM001 tourbillon — Named under this label (Dealer article series naming this label, 2026)
Which name gets confused with JB Factory?
Commonly conflated here: JB Factory and the other labels the Richard Mille line runs on, separated by the checks in the table below, whose sources are cited at the foot of this page.
| Name | Name it gets confused with | What to check |
|---|---|---|
| JB Factory | the other labels the Richard Mille line runs on | Several labels appear on this line across dealers, which is why Richard Mille pricing is hard to compare between sellers. |
What has not been verified?
The following is commonly repeated about JB Factory in the trade, and none of it is documented in public, so this site leaves it as unknown. 4 points are carried below as open questions, each one waiting on a dated source before it can be stated as fact:
- Production status and ownership
- Whether the label covers one workshop or several
- Movement provenance for the tourbillon references
- Any listing in our own sample: none carries this label
Sources on this page
This profile rests on the 2 sources listed below, dated and linked where an original exists, and any claim about JB Factory without a dated public source is carried above as an open question.
- dealer article · 2026 · Dealer article series naming this label on Richard Mille and Roger Dubuis references, 2026
- market observation · 2026-10-01 · Label search across our own price sample, 2026-10-01
Reviewed 2026-10-01. If a source here is wrong or has been superseded, the correction is published on this page. See About.