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WhatsApp : +88 01818929292 / +8801730296909
info@smmarineservice.com sohelbhuiyan1213@gmail.com arafatbhuiyan3657@gmail.com
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SEIKO MASTER CLOCK SYSTEM (Marine Master Clock)

Item Code:

Marine Master Clock

Brand:

Seiko

Condition:

New product


SEIKO MASTER CLOCK SYSTEM (Marine Master Clock)

Technical Blog | SM MARINE SERVICE™

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4

 DESCRIPTION

Manufacturer

Seiko

Country of Origin

Japan

Product Type

Marine Master Clock & Time Synchronization System

Marine Application

Bridge, Engine Control Room (ECR), Cargo Control Room, Radio Room, Accommodation, Machinery Spaces, and other locations requiring synchronized shipboard time.


Product Introduction

The equipment shown in your photo is a Seiko Marine Master Clock, a highly reliable shipboard time synchronization unit designed to maintain identical time across every connected slave clock installed throughout a vessel.

Unlike ordinary wall clocks, a marine master clock serves as the central timing reference for the entire ship. It continuously transmits synchronized pulse signals so that all analog or digital slave clocks display exactly the same time. This ensures accurate navigation records, engine room logs, cargo operations, radio communication, maintenance scheduling, and compliance with international maritime standards.

SM MARINE SERVICE™ supplies complete Seiko Master Clock systems, replacement units, spare parts, repair services, testing, calibration, and worldwide technical support.


What Is a Marine Master Clock?

A Marine Master Clock is the central timekeeping device installed onboard ships. It controls multiple slave clocks located throughout the vessel and ensures that every department operates using one synchronized time source.

Typical installations include:

  • Navigation Bridge
  • Engine Control Room
  • Captain's Office
  • Cargo Control Room
  • Radio Room
  • Crew Accommodation
  • Machinery Spaces
  • Workshop
  • Emergency Control Stations

Main Features

  • High-accuracy quartz timekeeping
  • Central synchronization for multiple slave clocks
  • Automatic pulse output
  • Manual time correction
  • Power failure recovery
  • Backup memory or battery support
  • Simple maintenance
  • Long service life
  • Stable operation in marine environments
  • Easy integration with shipboard electrical systems

Main Components

A complete Seiko Marine Master Clock system generally includes:

  • Master Clock Unit
  • Analog Display Clocks
  • Slave Clock Network
  • Pulse Output Circuit
  • Backup Battery
  • Synchronization Controller
  • Power Supply Module
  • Distribution Wiring
  • Alarm Indicators
  • Time Adjustment Controls

Marine Applications

Seiko Master Clock systems are commonly installed on:

  • Container Ships
  • Oil Tankers
  • Chemical Tankers
  • LNG/LPG Carriers
  • Bulk Carriers
  • Passenger Ships
  • Offshore Platforms
  • Naval Vessels
  • Research Ships
  • General Cargo Ships

Common Problems & Troubleshooting

Marine engineers may encounter:

  • Incorrect time display
  • Slave clocks not synchronizing
  • Pulse output failure
  • Backup battery failure
  • Internal power supply faults
  • Loose terminal connections
  • Drift in system time
  • Display or movement failure
  • Communication interruption between master and slave clocks

Routine inspection and calibration usually resolve most synchronization issues.


Maintenance Tips

  • Verify synchronization periodically.
  • Inspect output wiring and terminals.
  • Replace backup batteries when required.
  • Clean internal components during scheduled maintenance.
  • Check power supply voltage stability.
  • Test all connected slave clocks.
  • Record calibration and maintenance history.

Why Ships Still Use Seiko Master Clock Systems

Despite the availability of modern GPS-based timing solutions, Seiko Master Clock systems remain widely used because they offer:

  • Excellent long-term reliability
  • Simple operation
  • Low maintenance requirements
  • High synchronization accuracy
  • Proven performance in harsh marine environments
  • Easy integration with existing shipboard clock networks

Frequently Asked Questions (FAQ)

Can this unit synchronize multiple clocks?
Yes. A single master clock can synchronize numerous slave clocks installed throughout the vessel.

Can the system be repaired?
Yes. Most Seiko Master Clock units can be repaired, tested, and calibrated depending on their condition.

Do you supply spare parts?
Yes. SM MARINE SERVICE™ supplies complete units, spare modules, analog slave clocks, power supply components, and accessories.

Do you supply used and reconditioned equipment?
Yes. We offer New, Used, and Professionally Reconditioned equipment according to customer requirements and budget.


Short Product Description

The Seiko Marine Master Clock System is a professional shipboard time synchronization solution designed to provide accurate and consistent time throughout commercial vessels. Its dependable design, robust construction, and easy maintenance make it one of the most trusted marine clock systems in the maritime industry.


User Manual & Technical Resources

Available documentation typically includes:

  • Seiko Master Clock Operation Manual
  • Installation Manual
  • Wiring Diagram
  • Service Manual
  • Maintenance Guide
  • Troubleshooting Manual
  • Spare Parts Catalogue
  • Technical Specifications
  • Calibration Procedures

SM MARINE SERVICE™

SM MARINE SERVICE™ supplies Seiko Marine Master Clock Systems, slave clocks, controller units, spare parts, repair services, calibration, testing, and worldwide technical support.

Bangladesh Office
Samir Market, DT Road, Pahartali, Beside CDA Market, Chattogram, Bangladesh

China Warehouse & Support Center
Shanghai, China

Website: www.smmarineservice.com

Email: info@smmarineservice.com

WhatsApp: +8801818929292

Marketing Contact: Nazmul Hasan Bhuiyan


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