EPJ Boleh

Welcome to World's Finest Precision Parts Creation

We produce high-precision components with uncompromising quality. Driven by deep engineering expertise and proven manufacturing control. Built for accuracy, reliability, and long-term performance.

Metal Parts Division Overview

Establishment & Leadership

Name: Metal Parts Division

Founded: July 1988

General Manager Production: Komori Masashi

General Manager Engineering: Mokhtar B Selamat

Management Team

Our experienced leadership includes Ahmad Fuad, Zulkifili, Kelana, Zulanuar, Mohd. Husni, Nor Effendi, Tony, and Mohd Azizi, ensuring operational excellence across all divisions.

Operational Statistics

500++

Employees

As of November 10, 2025

1000++

Machines

Total equipment units

600++

Production Models

Monthly average items

150++K

Monthly Output

Pieces produced per month

500++

Monthly Kirikae

Cases processed

Main Products

We specialize in precision watch movements, delivering exceptional quality and reliability.

Machine Types

Auto-lathe, Gear Cutting, Pinion Lathe, NC Lathe, Forging, Heat Treatment, Stamping, NC Milling, Sub-assembly & BP Assembly.

Factory Layout

Our manufacturing facility is strategically organized to optimize production flow and efficiency. The layout encompasses dedicated zones for precision machining, heat treatment, stamping operations, and assembly processes, ensuring seamless coordination between departments and maximizing throughput.

Representative parts 代表部品

Our Manufacturing Heritage

1963

Malaysia gains independence, setting the stage for industrial development

1990s

Makishin production line established, expanding capabilities

2010s

S-Project implementation drives modernization and efficiency improvements

1988

Metal Parts Division established, beginning our precision manufacturing journey

2002

Malaysia gains independence, setting the stage for industrial development

2025

Continued excellence with 5++ employees producing 1++K pieces monthly

Over three decades of manufacturing expertise have positioned Metal Parts Division as a leader in precision watch component production, combining traditional craftsmanship with cutting-edge technology.

Advance Precision Manufacturing (APM) Production Teams

Main Product

Core precision manufacturing team specializing in primary components including Makishin and Tsutsu Guruma production.

Secondary Process

Secondary production team handling FM operations with specialized equipment and techniques.

Milling (ML)

Advanced milling operations for complex component fabrication.

Production Support (PSD

Comprehensive support services ensuring smooth operations across all teams.

Sub-Assembly (SA)

Integration and assembly of precision components into functional sub-units.

APM Auto-Lathe Machines

T7 & M7 Series

High-precision automatic lathes producing critical components including Makishin, Tsutsu Guruma, 2# Kana, Shin, and Attachment parts.

SS4, YT, YW, YD & YBB Models

High-precision automatic lathes producing critical components including Makishin, Tsutsu Guruma, 2# Kana, Shin, and Attachment parts.

APM - Gear Cutting: Precision Tooth Formation

Wahli - 1

Total Machines: 3+ units

Products: Tsuzumi Guruma, Kichi Guruma

Materials: Brass & Steel

Monthly Output: 5,272.4 Kpcs

Wahli - 2

Total Machines: 6+ units

Products: 2# Kana, Tsutsu Kana,  Tsutsu Guruma Tai

Materials: Brass & Steel

Monthly Output: 5,565.4 Kpcs

Wahli - 3

Total Machines: + units

Products: Switch Guruma, Kichi Guruma

Materials: Brass & Steel

Monthly Output: 300,620 pcs

Wahli - 4

Machines: 2+ automatic units

Parts: Hinoura Haguruma, Tsutsu Guruma,  Tai, Maru Ana Guruma

Materials: Brass & Steel

Production: 2,202.7 Kpcs/Month

Kpcs

Our gear cutting operations utilize advanced automated systems to achieve micron-level precision in tooth profiles, essential for smooth movement operation.

APM - Gear Cutting: Finishing Operations

Wahli Auto Series

Total Machines: 2+ units

Products: Hinoura Haguruma, Tsutsu Guruma Tai, Maru Ana Guruma

Materials: Brass & Steel

Monthly Output: 2,202.7 Kpcs

Hozomigaki (Auto)

Total Machines: 1+ units (3 Robot + 9 Feeder Bowl)

Products: Hinoura Haguruma, Tsutsu Guruma Tai, Maru Ana Guruma

Materials: Steel

Monthly Output: 505,075 pcs

Strausak Auto

Machines: + units

Products: Hiboshi Haguruma, Koyou Haguruma, Hinoura Haguruma

Materials: Brass & Steel

Monthly Output: 2,000 Kpcs

Kpcs

Hozomigaki Manual

Machines: 1+ units

Products: Rotor Kana, 4# Kana, Byou Guruma Shin

Materials: Brass & Steel

Monthly Output: 30,000 kpcs

Strausak Manual

Machines: + units

Products: Hiboshi Haguruma, Koyou Haguruma, Hinoura Haguruma

Materials: Brass & Steel

Monthly Output: 800 Kpcs

Automation Set Up

Technology Node 2: Advanced Manufacturing

APM represents our advanced manufacturing capabilities with state-of-the-art NC lathes and pinion production systems. This node focuses on high-precision, small-diameter components requiring exceptional tolerances.

2# Kana

Second wheel pinion with precision tooth profiles

Shin

Various shaft components for movement assemblies

Center Pipe

Central shaft tube for movement structure

AMP 2 - Pinion Lathe Technology

Seiko Seiki - 1 Machines

Total: 9+ units

Parts: Kotetsu Guruma, Calendar Syusei Guruma

Standard precision pinion production with proven reliability and consistent quality output

Seiko Seiki - 2 Machines

Total: 1++ units

Parts: Hinoura Kana, 4# Kana, Calendar wheels

Enhanced precision variant for demanding tolerance requirements and complex geometries

Hybrid Machines

Total: 2+ units

Products: Switch Guruma, Kichi Guruma

Parts: 3# Kana, specialized components

Next-generation technology combining speed and precision for high-mix production

Mini Lathe

Total: + units

Parts: Ultra-small precision components

Specialized equipment for miniature parts requiring exceptional dimensional control

APM 2: Specialized Production Lines

Metal Part AMP 1

Primary metal parts production team

PSD

Production support division

ML

Milling and machining

AMP 2

Secondary production operations

FM

Forging and manufacturing

SA

Sub-assembly operations

AMP 2 operations focus on high-precision components requiring advanced machining capabilities. Our pinion lathe and NC lathe lines produce critical parts for watch movements including calendar mechanisms, center components, and specialized fasteners.

AMP 2 - NC Lathe: Advanced Turning Centers

Swiss-Type CNC Systems

Start -1 Series: 2+ machines for high-precision small-diameter work

Swiss Nano: + machines  for ultra-precision micro components

Start – 2 Series: + machines (SW-7, SW-7HS, SW-12H) for complex multi-axis operations

Specialized Turning Centers

Citizen – 1 Series: 9 machines for medium-diameter components

Citizen – 2 Series: 1 machine for specialized applications

Tsugami – 1: + machines for high-volume production

Start -3: + machines for batch processing

Total NC Lathe Capacity: 63 machines producing complex components with automated tool changing and multi-axis capabilities

NC Lathe Product Portfolio

Gairin

Outer ring component

Tsuzumi Guruma

Drum-shaped wheel

Neji

Precision screw

Hinoura Kana

Inner wheel component

2# Kana

Second pinion

Tsutsu Guruma

Cylindrical wheel

Kaku Ana Dai

Square hole base

Koubako

Mainspring barrel

FM Machine Types

Neji Pin Production

Specialized screw pin manufacturing with precision tolerances

Neji (Blank)

Blank screw production for subsequent operations

Oshidori & Neji

Combined production of pusher and screw components

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Raw Material

High-carbon spring steel selection and preparation

Forging Process

Controlled deformation creating optimal grain structure

Heat Treatment

Precise thermal processing for spring characteristics

Surface treatment and dimensional verification

High-carbon spring steel selection and preparation

Primary Product: Makishin (mainspring arbor) – critical component requiring exceptional dimensional stability and surface finish for reliable long-term operation.

FM Makishin Production

Makishin Type 1

Primary mainspring coiling system for standard watch movements

Makishin Type 2

Advanced mainspring system for high-performance calibers

Makishin Type 3

Specialized mainspring configuration for unique applications

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FM Stamping Operations

Yamada Dobby - 1

Machines: + units • Production: 3,000 Kpcs/Month

Parts: 2#, 3#, 4# Haguruma, Teikeizai • Materials: Brass & Steel

Yamada Dobby - 2

Machines: + units • Production: 90 Kpcs/Month

Parts: Clutch Plate, Yuusei Chuukan Haguruma • Materials: Brass & Steel

Aida - 1

Machines: + unit • Production: 1,000 Kpcs/Month

Parts: Taiyou Denchi Annaiban, Tsutsu Haguruma, Kaitensui Tai

Air Press - 2

Machines: 1+ units (Auto, Semi-Auto, Manual) • Production: 2,000 Kpcs/Month

Parts: Hiboshi Haguruma, Koyou Haguruma, 2# Haguruma

Obata - 1

Machines: + unit • Production: 100 Kpcs/Month

Parts: Hari Za • Materials: Brass

Primary Product: Makishin (mainspring arbor) – critical component requiring exceptional dimensional stability and surface finish for reliable long-term operation.

Sub-Assembly Operations

Metal Part APM 1

Base component supply

PSD

Support infrastructure

ML

Milled parts supply

APM2

Processed parts input

FM

Forged components

SA

Integration & assembly hub

TN 2 operations focus on high-precision components requiring advanced machining capabilities. Our pinion lathe and NC lathe lines produce critical parts for watch movements including calendar mechanisms, center components, and specialized fasteners.

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SA Sub-Assembly Machines

FA2 Machine

Units: ++

Products: 4# Haguruma (Drop), 4# Kana, 4# Guruma

Fully automated assembly for fourth wheel components

WHA Machine

Units: ++

Products: 2# Haguruma (Coil), 2# Kana, 2# Guruma

Second wheel automated assembly system

G-DOM Machine

Units: +

Products: Ji Calendar Dai 2 Chuukan Haguruma (Coil), Kana, Guruma

Calendar intermediate wheel assembly

SA Advanced Assembly

KA-M1 Machine

Units: +

Products: PR Koubako assembly including Koubako Shin, Main Spring, Koubako Futa, and Koubako Guruma

Complete mainspring barrel assembly system integrating multiple critical components in a single automated workflow.

APR Machine

Units: +

Products: Calendar Rotor Kana, Rotor Magnet, Rotor Za, Byou Fun Rotor

Automated rotor assembly for calendar and automatic winding mechanisms.

SA BP Assembly: High-Volume Production

RP-20 Machines

Total Units: +

Daily Capacity: 700 pcs

Products: 9F Jiita, 9F Rinretsu

High-speed automated assembly with integrated quality inspection systems

Hand-Press Operations

Units: +

Daily Capacity: 300 pcs

Products: 4J Jiita base plates

Semi-automated operations for specialized or lower-volume assemblies

Our BP assembly operations balance automation with manual precision, utilizing automated systems for high-volume standardized assemblies while maintaining manual stations for complex or low-volume products

SA BP Assembly - Azusa & Totechin

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Azusa System

Machines: + units | Daily Capacity: 3++ pcs

Products: 9R6 Jiita and 9F6 Jiita base plates with precision assembly steps

Totechin System

Machines: + units | Daily Capacity: 2++ pcs

Products: 9RA Rinretsu and 931 Rinretsu train wheel bridges

SA BP Assembly - JP-501 & EP-642

JP-501 System

Machines: + unit

Daily Capacity: 5++ pcs

Product: 9R Kaitensui Uke (automatic rotor bearing)

Specialized automated assembly for high-precision automatic winding components.

EP-642 System

Machines: + unit

Daily Capacity: 5++ pcs

Product: 9RA Kaitensui (automatic rotor assembly)

Specialized automated assembly for high-precision automatic winding components.

Milling & Finishing Operations

The ML (Milling) division encompasses precision NC milling operations and decorative finishing processes. These operations transform machined components into finished parts ready for assembly, with surface treatments enhancing both functionality and aesthetics.

NC Milling

High-precision 5-axis machining for complex geometries

Moyotsuke

High-precision 5-axis machining for complex geometries

Surface Finishing

Diamond cutting, polishing, and engraving operations

ML Advanced Surface Finishing

The ML (Milling) division encompasses precision NC milling operations and decorative finishing processes. These operations transform machined components into finished parts ready for assembly, with surface treatments enhancing both functionality and aesthetics.

Paper Pattern

Machines: + unit

Capacity: 0.+ Kpcs/month

Product: 5A Rinretsu Uke Tai

Outer diameter diamond cutting for brilliant reflective edges on rotating components.

Regrinding

Machines: + unit

Capacity: 1+ Kpcs/month

Product: 9RA Dai 2 Koubako

Outer diameter diamond cutting for brilliant reflective edges on rotating components.

OD Diamond Cut

Machines: + unit

Capacity: + Kpcs/month

Product: 9R65 Kaitensui and 9R Kaitensui

Outer diameter diamond cutting for brilliant reflective edges on rotating components.

Engraving

Machines: + unit

Capacity: + Kpcs/month

Precision engraving for marking and decorative detailing on high-end components.

ML High-Precision NC Milling Centers

Makino - 1 Series

Quantity: + units

Spindle Speed: 16,000 RPM

Feedrate: 48,000 mm/min

Max Production: 1+ Kpcs/month

Applications: Low caliber components and moderate complexity parts with excellent efficiency

  • Kaitensui Tai (rotor bases)
  • Kairo Uke (circuit holders)

Makino - 2 Series

Units: 1+

Spindle Speed: 40,000 RPM (20,000 RPM operating)

Feedrate: 10,000 mm/min

Max Production: 1+ Kpcs/month

Applications: High caliber and complex geometries with rotary jig automation

  • Jiita Tai (base plates)
  • Rinretsu Uke Tai (train wheel bridges)
  • 2# Uke Tai (second wheel bridges)

Our NC milling operations represent the pinnacle of precision manufacturing, combining high-speed machining with advanced control systems to produce complex three-dimensional components with exceptional surface quality.

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ML Traditional Moyotsuke Patterns

Tsuge Pattern

+ machine • Capacity: 2+ Kpcs/Month

Traditional wood-grain pattern creating elegant linear textures on rotor and base plate surfaces

Spin Pattern

+ machines • Capacity: + Kpcs/Month

Circular brush finishing creating concentric decorative patterns, highly valued for aesthetic appeal

Sujime Pattern

+ machine • Capacity: 0.+ Kpcs/Month

Fine linear stripes requiring skilled craftsmanship, adding refined detail to premium components

PSD Production Support Division

Management Shop

Strategic oversight and operational coordination ensuring seamless workflow across all divisions and maintaining quality standards.

Human Development

Comprehensive employee training programs, skill development initiatives (トレーニング, スキル学習), and continuous learning pathways.

Production Support

Direct assistance to production teams including 採用 (recruitment), 人員配置 (personnel allocation), and operational troubleshooting.

Human Development: Skill Pyramid

Master Craftsmen

Elite specialists with deep expertise in specific processes

Senior Technicians

Experienced operators capable of handling complex operations

Skilled Operators

Proficient workers performing standard production tasks

Developing Operators

Growing workforce building foundational manufacturing skills

New Employees

Entry-level team members beginning their manufacturing journey

Our structured development framework ensures every employee has a clear path for growth, from initial training through master craftsman status. This systematic approach builds the skilled workforce essential for maintaining our reputation for precision and quality.

Continuous learning and skill development are fundamental to our culture, with regular training sessions, mentoring programs, and opportunities for advancement based on demonstrated competency and commitment to excellence.

Excellence in Precision Manufacturing

Our Foundation

37 years of manufacturing heritage combining traditional craftsmanship with cutting-edge technology

Our Strength

592 dedicated professionals producing 152,000 pieces monthly across 1,168 machines

Our Future

Continuous innovation and improvement driving excellence in precision watch component manufacturing

Metal Parts Division stands as a testament to manufacturing excellence, where precision measured in microns meets production volumes measured in millions. Our commitment to quality, continuous improvement, and workforce development ensures we remain at the forefront of precision component manufacturing for the global watch industry.

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