At a glance
Browse Hajime Asaoka watches →
Selected reference records
10 documented configurations from 9 model names. These records are a selection, not the full Hajime Asaoka catalogue.
- Chronograph · 1 record
- Project-T Tourbillon · 1 record
- Tourbillon #1 · 1 record
- Tourbillon PURA Prototype · 1 record
- Tsunami · 2 records
- Tsunami 16 · 1 record
- Tsunami Art Deco edition · 1 record
- Tsunami Art Deco Prototype · 1 record
- Tsunami Édition Blanche · 1 record
Identity and scope
Hajime Asaoka is a Japanese independent watchmaker and AHCI member producing watches under his own name.
This guide treats that identity as the starting point. It does not transfer line-level history to an individual watch without matching reference evidence. 1
Historical position
The AHCI profile says he began making watches in 2005, launched an in-house tourbillon wristwatch in 2009, and began sales under his name in 2011.
The date and context belong to the event described, not automatically to every object bearing the name. 1
What the source establishes
The cited AHCI record is the evidence anchor used here for Hajime Asaoka. Its documented scope is narrower than a complete corporate, calibre, or model archive.
Where the source speaks for the brand, its historical statements remain attributed rather than converted into independent verification. 1
Identify the exact watch
Record every visible dial signature, the complete case-back reference and serial markings, movement or module markings, dimensions, materials, and complications. Compare those details with a dated catalogue, manual, archive extract, or service document for the exact reference.
A shared logo or broadly similar case is an identification lead, not proof of age, originality, or authenticity. 1
Keep entities and dates separate
Use 2005 only in the documented context described above. Names may survive ownership changes, disappear and return, or refer to a founder, historic maker, product line, and present operator at different times.
Build an object-level chronology before making continuity claims. 1
Research a Hajime Asaoka watch
Start with clear photographs of the dial, case back, crown, clasp, and movement where safely accessible. Search the exact markings in primary documentation and retain the document date and page or section.
For authentication, servicing, or valuation, use a qualified specialist and preserve provenance, invoices, and prior service records. 1
Independent research update
Hajime Asaoka is a Japanese independent watchmaker whose watches under the HAJIME ASAOKA Tokyo Japan name are designed, manufactured and assembled by him.
He began manufacturing watches in 2005, launched an in-house tourbillon wristwatch in 2009, began selling under his name in 2011, and founded Precision Watch Tokyo Co., Ltd. in 2016. 23
Key dates
- 2005
Documented milestone
The AHCI profile says he began making watches in 2005, launched an in-house tourbillon wristwatch in 2009, and began sales under his name in 2011. 1
- 2005
- 2009
- 2011
- 2016
Ownership and continuity
The current evidence identifies Hajime Asaoka and establishes the bounded historical context above; an individual watch still needs reference-level documentation. 1
Watchmakers and designers linked to Hajime Asaoka
These people have a sourced relationship to this brand in the Enjoy Watches register. The label beside each name states the relationship recorded; it should not be read as a broader employment or ownership claim.
- Hajime Asaoka — Own watchmaking practice
Identification and service
For an individual watch, record the complete reference, serial, dial, case, and movement markings and compare them with dated primary documentation.
A brand history cannot authenticate, appraise, or establish the provenance of a particular watch.
Evidence and limits
How the claims are supported
- source stated claim
Hajime Asaoka is a Japanese independent watchmaker and AHCI member producing watches under his own name.
- source stated claim
The AHCI profile says he began making watches in 2005, launched an in-house tourbillon wristwatch in 2009, and began sales under his name in 2011.
- verified observation
The cited AHCI page is the source used for this guide's bounded identity and history statements.
- verified observation
Hajime Asaoka is a Japanese independent watchmaker whose watches under the HAJIME ASAOKA Tokyo Japan name are designed, manufactured and assembled by him.
- verified observation
He began manufacturing watches in 2005, launched an in-house tourbillon wristwatch in 2009, began selling under his name in 2011, and founded Precision Watch Tokyo Co., Ltd. in 2016.
Known limits
- This guide does not authenticate or value an individual watch.
- The two accessible profiles are closely aligned in wording, so they are not strong evidence for disputed claims.
- No reference-level authentication or valuation is attempted.
Direct sources
- Hajime AsaokaAHCI · institutional member profile · accessed September 12, 2026
Locator: Identity and historical context used by this guide. External source.
- Hajime AsaokaAHCI · specialist · accessed September 12, 2026
Locator: Relevant identity, chronology, control, or manufacturing passage. External source.
- Hajime AsaokaThe Independents · specialist · accessed September 12, 2026
Locator: Relevant identity, chronology, control, or manufacturing passage. External source.
Corrections
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