Xu Yaonan: Watchmaking Work & Brands

At a glance

Role: Movement designer / technical author 1
Period: 20th–21st century
Place: China 1
Dates: 1935–? 1Birth year explicitly stated in association biography.
Also known as: 许耀南 1

The watchmaking story

Useful places to start with Xu Yaonan's work include TB01 tourbillon family, B24 / B24-LB, and automatic-watch textbook (1990). 1

Xu Yaonan worked for or held a role at Beijing Watch Factory. 1 2 3 4

Recognition: First-batch Chinese mechanical-watch movement design master (2012) 1 3

Scope: Direct watchmaking

Why this person is included

Documented individual work and/or professional recognition

Background and working context

Affiliations and workshops: Beijing Watch Factory 1

Geographic ties: China. Documented professional location; not a citizenship assertion

Brands, workshops, and other relationships

Watch brand / watchmaking business · Inherited source-linked record; relationship classification reviewed, sources not reopened
Beijing Watch Factory — Worked for / held role. Movement designer / technical author 1 2 3 4
Legacy affiliation: Beijing Watch Factory. Person-level contribution: Co-developed Beijing complicated movements and, with Shi Wenli, a technical book on automatic-watch mechanisms.
Original affiliation wording: Beijing Watch Factory. No present-day employment or ownership inferred.

Shi Wenli — Beijing Watch Factory
Su Wenbin — Beijing Watch Factory
Zhao Zhenling — Beijing Watch Factory

Evidence and limitations

This dossier connects 15 field-specific evidence records with 4 public sources. Known links only; full career not established

Claim qualifications (14)

Full name: Historical association attribution; no national/world-first or independently tested performance claim. B24 dates differ: this timeline says 2012; Shi Wenli's profile says 2011. Collaborative development chronology remains qualified. 1
Noteworthy contribution: Historical association attribution; no national/world-first or independently tested performance claim. B24 dates differ: this timeline says 2012; Shi Wenli's profile says 2011. Collaborative development chronology remains qualified. 1
Representative work: Historical association attribution; no national/world-first or independently tested performance claim. B24 dates differ: this timeline says 2012; Shi Wenli's profile says 2011. Collaborative development chronology remains qualified. 1
Affiliations / workshops: Historical association attribution; no national/world-first or independently tested performance claim. B24 dates differ: this timeline says 2012; Shi Wenli's profile says 2011. Collaborative development chronology remains qualified. 1
Specific role: Historical association attribution; no national/world-first or independently tested performance claim. B24 dates differ: this timeline says 2012; Shi Wenli's profile says 2011. Collaborative development chronology remains qualified. 1
Primary geography: Historical association attribution; no national/world-first or independently tested performance claim. B24 dates differ: this timeline says 2012; Shi Wenli's profile says 2011. Collaborative development chronology remains qualified. 1
Birth year: Historical association attribution; no national/world-first or independently tested performance claim. B24 dates differ: this timeline says 2012; Shi Wenli's profile says 2011. Collaborative development chronology remains qualified. 1
Other names / spellings: Historical association attribution; no national/world-first or independently tested performance claim. B24 dates differ: this timeline says 2012; Shi Wenli's profile says 2011. Collaborative development chronology remains qualified. 1
Recognition: Historical association attribution; no national/world-first or independently tested performance claim. B24 dates differ: this timeline says 2012; Shi Wenli's profile says 2011. Collaborative development chronology remains qualified. 1
Birth year: Recovered earlier-branch mapping. The B24 chronology differs between association pages (2011 completion versus a 2012 timeline heading); no exclusive inventor or national-first claim. Not Xu Jiabao. 1
Noteworthy contribution: Historical snapshot differs from current People field; supports only the stated claim. Recovered earlier-branch mapping. The B24 chronology differs between association pages (2011 completion versus a 2012 timeline heading); no exclusive inventor or national-first claim. Not Xu Jiabao. Post-consolidation gap-resolution pass: historical value snapshot differs from the current People value; retain as audit history. 1
Representative work: Historical snapshot differs from current People field; supports only the stated claim. Recovered earlier-branch mapping. The B24 chronology differs between association pages (2011 completion versus a 2012 timeline heading); no exclusive inventor or national-first claim. Not Xu Jiabao. Post-consolidation gap-resolution pass: historical value snapshot differs from the current People value; retain as audit history. 1
Affiliations / workshops: Recovered earlier-branch mapping. The B24 chronology differs between association pages (2011 completion versus a 2012 timeline heading); no exclusive inventor or national-first claim. Not Xu Jiabao. 1
Recognition: Historical snapshot differs from current People field; supports only the stated claim. Recovered earlier-branch mapping. The B24 chronology differs between association pages (2011 completion versus a 2012 timeline heading); no exclusive inventor or national-first claim. Not Xu Jiabao. Post-consolidation gap-resolution pass: historical value snapshot differs from the current People value; retain as audit history. 3

Sources

第一批中国机械表机心设计大师许耀南China Horologe Association / 中国钟表协会 · Professional association · Not stated; timeline includes 2014
[S0218] China Horologe Association / 中国钟表协会. "第一批中国机械表机心设计大师许耀南." Not stated; timeline includes 2014. https://www.chinahorologe.com/zt/zbds1/xyn.html Accessed 2026-09-13.
Source context
Relationship to subject: Professional recognition / subject profile
How it was checked: Web page opened; relevant text inspected
Limitation: Historical profile; promotional priority claims and current employment are not adopted.
第一批中国机械表机心设计大师石文礼China Horologe Association / 中国钟表协会 · Professional association · 2012-06-19
[S0219] China Horologe Association / 中国钟表协会. "第一批中国机械表机心设计大师石文礼." 2012-06-19. https://www.chinahorologe.com/zbdsdetail.aspx?id=320 Accessed 2026-09-13.
Source context
Relationship to subject: Professional recognition / subject profile
How it was checked: Web page opened; relevant text inspected
Limitation: Historical profile; promotional priority claims and current employment are not adopted.
关于授予周文霞等12位同志“中国钟表大师”的决定 [Decision awarding twelve Chinese horological masters]中国钟表协会 (China Horologe Association) · 中国钟表协会 (China Horologe Association) · Institutional / award record · 2012-06-21
[S0267] 中国钟表协会 (China Horologe Association). 中国钟表协会 (China Horologe Association). "关于授予周文霞等12位同志“中国钟表大师”的决定 [Decision awarding twelve Chinese horological masters]." 2012-06-21. https://www.chinahorologe.com/contentdetail.aspx?id=301 Accessed 2026-09-13. Locator: Four award-category lists..
Source context
Relationship to subject: Awarding body
How it was checked: Page opened; relevant text read
Limitation: Establishes the named award and its category; alone does not identify each recipient’s objects or life dates.
https://www.chinahorologe.com/zt/zbds1/xyn.html https://www.chinahorologe.com/zbdsdetail.aspx?id=320 https://www.chinahorologe.com/contentdetail.aspx?id=301linked source

Corrections and stronger evidence

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