Nanan Seiko

What Nanan Seiko does

Nanan Seiko Co., Ltd. is a Japanese precision machinery manufacturer founded in 1967 and incorporated in 1980, headquartered in Azumino City, Nagano Prefecture, with 101-250 employees and 10 million yen in stated capital. The company operates three integrated business pillars: (1) FA equipment and automation machinery, where it designs and builds factory automation systems; (2) precision component processing, supplying machined parts into industrial customers; and (3) watch manufacturing, encompassing OEM watch assembly at stated monthly capacity of 10,000 units and the proprietary Azusa and TMPL own-brand watch lines. The firm also runs Tokeiya Fukkokodo, an antique-watch retail subsidiary established in 2004, providing downstream consumer reach into vintage timepieces adjacent to its assembly capability. The current president is Tomoyuki Kobayashi.

The business model combines contract manufacturing (OEM watch assembly and custom precision components for industrial clients), proprietary product sales (Azusa and TMPL own-brand watches), and ancillary retail (antique watches). Revenue is generated across B2B component supply — including a stated relationship with Subaru Tecnica International for high-end automotive applications — and B2C watch distribution through own-brand and retail channels. Production operations are anchored in Azumino City, with the Hotaka Factory expanded in November 2023 to add capacity for precision components and watch assembly. The company is privately held with no external funding disclosed and operates outside public financial reporting.

Technology foundation rests on in-house FA equipment design, integrated precision machining, and end-to-end mechanical watch assembly, including an OEM watch line that supports external brand clients. The vertical integration across automation equipment, component machining, and watchmaking is uncommon among Japanese SMEs of this size and underpins both customer offerings and internal production economics.

Name

Nanan Seiko

Legal name

株式会社南安精工

Website

https://nanan.co.jp

Company type

Private

Founded year

1967

Operating status

Operating

Headcount range

101–250 employees

Short description

Nanan Seiko is a Japanese precision manufacturer in Azumino City, Nagano, operating three integrated pillars: FA automation equipment, precision component processing, and mechanical watch manufacturing including OEM assembly at 10,000 units per month under own brands Azusa and TMPL.

Ownership category

akta.pro rank

Product category

Precision Machinery Manufacturing

NAICS

Machinery Manufacturing (333), Industrial Machinery Manufacturing (3332)

SIC

Special Industry Machinery (No Metalworking Machinery) (3550)

akta.pro primary industry

Watch Manufacturing (Movements, Cases, Dials, Assembly) (CRAKADAJ)

Keywords

• FA equipment manufacturing
• Precision component machining
• Watch OEM manufacturing
• Automation machinery design
• Labor-saving equipment

Headquarters

HQ city

Toyoshina

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Machinery Design and Manufacturing: Design and manufacturing of FA equipment, automation machinery, and labor-saving machinery. Revenue generated from custom equipment sales, from concept and design through manufacturing, installation, and maintenance support.
2. Precision Component Processing: Precision parts machining services for prototypes and custom one-off components. Processing of various materials including difficult-to-machine materials, aluminum, steel, and copper using cutting processes. Includes NC lathe, machining center, and wire EDM capabilities.
3. Watch OEM Manufacturing: Contract manufacturing of watches for brand holders including design, engineering, component procurement, assembly, and packaging. Supports quartz (2-hand, 3-hand, chronograph, solar) and mechanical movements. Assembly capacity of 10,000 units per month.
4. Original Watch Brand Sales: Development and sales of proprietary watch brands (Azusa, TMPL) through crowdfunding platforms and retail channels including Tokeiya Fukkokudo store. Also includes watch repair services.
5. Watch Customization Services: Custom service for replacing watch components (dials, hands, bezels, crowns) on purchased ORTHODOXY watches. Services include dial replacement (from 5,000 yen), hand replacement (from 4,000 yen), and combined services with overhaul.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

Nanan Seiko designs and manufactures custom FA (factory automation) equipment and labor-saving machinery, provides precision component machining services for prototypes and difficult-to-machine materials, and operates an in-house watch manufacturing business that includes OEM contract manufacturing for brand holders and original watch brands (Azusa, TMPL) sold through retail and crowdfunding channels.

Product overview

Nanan Seiko operates as a precision machinery manufacturer with three core business pillars: (1) Custom machinery/FA equipment design and manufacturing, (2) Precision component processing, and (3) Watch manufacturing. The company produces original watch brands Azusa (including ORTHODOXY, CLASSIC, Marble lines) and TMPL, while also offering OEM watch manufacturing services. Additional offerings include custom watch modification services, precision mechanical components, and a retail/repair service for antique and original watches through Tokeiya Fukkokudo.

Differentiator

Problem solved

Functional benefit

Brands

• Azusa: Original watch brand featuring the ORTHODOXY series and other models including CLASSIC, CLASSIC II, Marble, and Marble-W watches.
• TMPL (テンプル)
• Tokeiya Fukkokudo (時計屋復刻堂)

Products and services

• FA Equipment, Automation and Labor-Saving Machinery (FA機器・自動化・省力化機械装置) Custom-designed mechanical equipment for factory automation, labor-saving, and productivity improvement. Handles design, manufacturing, assembly, and installation from concept to completion for manufacturing clients addressing labor shortages and quality stabilization needs.
• Precision Component Processing (精密部品加工) Precision parts manufacturing for prototypes and custom one-off components using CNC lathes, machining centers, and wire EDM machines. Processes difficult-to-machine materials including aluminum, steel, copper, and special steels with complex geometries and tight tolerances.
• Azusa ORTHODOXY Watch Original mechanical watch featuring simple, timeless design suitable for all ages. Signature product line of the Azusa brand with multiple subsequent iterations including ORTHODOXY 2nd and ORTHODOXY-R Basic variants with upgraded case designs.
• Azusa CLASSIC II Watch Automatic winding watch model reviving the original Azusa CLASSIC design. Maintains the original's vintage aesthetic and comfortable size while upgraded from manual to automatic winding.
• Azusa ORTHODOXY-R Basic Watch Latest model in the Azusa ORTHODOXY series featuring a significantly redesigned case with zaratsu polishing finish. Upgraded with formal, luxurious feel suitable for business settings while maintaining the original ORTHODOXY appeal.
• Azusa ORTHODOXY 2nd Watch Second model in the ORTHODOXY line with added playful design elements while maintaining the original high-quality design.
• Azusa Marble Watch First women's watch in the Azusa brand. Can be paired with the men's Azusa ORTHODOXY as a couple watch.
• TMPL First Model Watch First model of the TMPL (Temple) brand featuring 1910s watch design aesthetics revived through modern precision technology.
• TMPL Second Model Watch Second model in the TMPL brand featuring retro watch designs from the 1920s and 1960s revived through modern craftsmanship.
• TMPL FUSION MODEL Watch TMPL brand model combining distinctive design elements from different eras. The FUSION MODEL mixes dial, hands, and case designs from various decades.
• Watch OEM Manufacturing Service (腕時計OEM製造) Original equipment manufacturing service for wristwatches including design, specification design, component procurement, domestic assembly, and packaging. Supports quartz (2-hand, 3-hand, chronograph, solar) and mechanical movements with monthly capacity of 10,000 units and minimum order quantity from 1 unit.
• Watch Customization Service "Watch Evolves" (カスタムサービス「Watch evolves」) Customization service for ORTHODOXY watches allowing customers to exchange dials, hands, bezels, and crowns to create new designs. Includes complimentary labor when combined with overhaul service.

Named customers2 records

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Subaru Tecnica International Co., Ltd.coreOEM/ Whitelabel/ Licensing Partner · 10 January 2020Nanan Seiko's watch manufacturing department developed and manufactured original watches for Subaru Tecnica International. Products include STI Limited Watch 2020 (CODE: H1NH38A) inspired by flight watches and CODE: D1VH31A with disc brake rotor design core concept. Watch manufacturing expertise applied to produce premium mechanical watches.
• Shimauchi Seiki Co., Ltd.coreStrategic or Co-development Partner · 1 October 1980Business partner for watch component assembly and processing transactions since company incorporation in 1980. Long-standing relationship supporting watch manufacturing operations.
• Seiko Epson CorporationminorStrategic or Co-development PartnerReferenced in CSR environmental standards compliance - company adheres to Seiko Epson Green Procurement Standards for Production Materials. Environmental management alignment with major electronics manufacturer standards.

Scale indicators5 records

Recent moves10 records

Expansion highlights4 records

Broad incumbents

• Citizen Machinery Co., Ltd. Precision machinery manufacturer (sister company to Citizen Watch) producing CNC lathes and machining centers. Comparable in precision industrial equipment design, manufacturing, and applications for industrial customers.
• Casio Computer Co., Ltd. Japanese manufacturer of watches (G-Shock, etc.) and consumer electronics. Comparable in watch manufacturing capability, brand development, and OEM-style partnerships, though operating at much larger scale across multiple product categories.
• FANUC Corporation: Global leader in industrial automation, robotics, and CNC (FANUC wire-cut EDM machines used by Nanan Seiko). Broader incumbent in the factory automation space where Nanan Seiko's FA equipment business directly competes and sources components.
• DMG Mori Co., Ltd. Global machine tool manufacturer whose 5-axis machining centers (US-20-LINEAR) Nanan Seiko uses in production. Broader incumbent in industrial machinery whose equipment defines the technical envelope for precision component manufacturers like Nanan Seiko.
• Seiko Watch Corporation: Japan's dominant watch manufacturer with extensive OEM capabilities and strong own-brand portfolio. Broader incumbent in the same primary watch manufacturing space, with vastly greater resources but addressing overlapping customer needs.
• Citizen Watch Co., Ltd. One of Japan's major watch manufacturers offering OEM services, component manufacturing, and major own brands. Much larger scale than Nanan Seiko but directly comparable in the watch OEM and original-brand manufacturing space where Nanan Seiko competes.
• Star Micronics Co., Ltd. Japanese manufacturer of precision components, small parts, and machinery. Comparable in precision machining and micro-component manufacturing expertise applied to industrial customers across similar use cases.

Direct peers

• Sodick Co., Ltd. Japanese manufacturer specializing in EDM (electrical discharge machines) and precision machining equipment, directly comparable to Nanan Seiko's wire EDM and precision machining capabilities used for both components and watch parts.
• Rhythm Co., Ltd. Japanese clock and watch manufacturer offering OEM services and own-brand products. Comparable mid-size profile to Nanan Seiko with in-house precision manufacturing for watch OEM clients and proprietary watch brands, operating across similar customer segments.
• Orient Watch Co., Ltd. Japanese watch manufacturer producing both OEM and own-brand mechanical watches. Directly comparable to Nanan Seiko's combined OEM (for brand holders like STI) and original brand (Azusa, TMPL) watch business model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks3 records

Key highlights7 records

Customer concentration

• Xtwitter.com/fukkokudo_tokei
• Facebookfacebook.com/fukkokudo
• Instagraminstagram.com/fukkokudo

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Nanan Seiko