Assessor Resource

MEM21014A
Service mechanical chronograph watches

Assessment tool

Version 1.0
Issue Date: May 2024


This unit of competency applies to servicing work undertaken by a watch repair tradesperson on mechanical chronograph watches. Work would normally be undertaken in watch service and repair centres and jewellery stores where service and repairs are offered.

This unit has been developed for watch service and repair apprenticeship training and the recognition of trade-level skills in watch servicing and repair.

Band: A

Unit weight: 6 points

This unit of competency covers servicing techniques for mechanical chronograph watches, including sub-assemblies and case components. It covers inspection and replacement of faulty components, testing, adjusting and lubrication procedures for chronograph mechanisms to ensure optimum performance and timekeeping.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)

Prerequisites

MEM21011A

Service calendar and other dial indication mechanisms for watches

MEM21010A

Service watch power generating systems

MEM21009A

Inspect, diagnose, adjust and repair mechanical watches

MEM21008A

Service mechanical watches

MEM18001C

Use hand tools

Employability Skills

This unit contains employability skills.



Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

A person who demonstrates competency in this unit must be able to service mechanical chronograph watches to industry standards, manufacturer specifications and in accordance with safety regulations and procedures.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessors must be satisfied that the candidate can competently and consistently:

dismantle, assemble and clean chronograph watches using correct techniques and precautions

inspect, fault-find and adjust chronograph mechanisms

perform function and performance testing

perform chronograph dial and hand fitting

select and apply lubricants correctly.

Context of and specific resources for assessment

Assessment may occur on the job or in an appropriately simulated environment. Access is required to real or appropriately simulated situations, including work areas, materials and equipment, and information on workplace practices and OHS practices.

Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate ethnicity, age, gender, demographics and disability.

Access must be provided to appropriate learning and/or assessment support when required. Where applicable, physical resources should include equipment modified for people with disabilities.

Method of assessment

Assessment must satisfy the endorsed Assessment Guidelines of the MEM05 Metal and Engineering Training Package.

Assessment methods must confirm consistency and accuracy of performance (over time and in a range of workplace relevant contexts) together with application of underpinning knowledge.

Assessment methods must be by direct observation of tasks and include questioning on underpinning knowledge to ensure its correct interpretation and application.

Assessment may be applied under project-related conditions (real or simulated) and require evidence of process.

Assessment must confirm a reasonable inference that competency is not only able to be satisfied under the particular circumstance, but is able to be transferred to other circumstances.

Assessment may be in conjunction with assessment of other units of competency where required.

Guidance information for assessment

Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Required skills

Required skills include:

diagnosing faults in complex mechanical watches

dismantling/reassembling mechanical watch movements in accordance with procedures and manufacturer guidelines

inspecting and adjusting chronograph watch mechanisms and sub-assemblies

fault-finding and inspecting watch mechanisms and sub-assemblies

performing timekeeping analysis and adjustment techniques

selecting and applying correct amount of lubrication for chronograph mechanisms

Required knowledge

Required knowledge includes:

basic functions and operations of the chronograph or stop watch (e.g. start, stop and reset)

identification of the component parts of a chronograph watch mechanism

inspections and adjustments techniques of mechanical chronograph mechanisms

dismantling/reassembling techniques for mechanical chronograph watches in accordance with procedures and manufacturer guidelines

manufacturer specification and tolerances for lubrication, performance and timekeeping

chronograph watch case construction, and pushbuttons and pendants servicing

band construction and components

occupational health and safety (OHS) regulations and procedures)

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Types of chronograph watch mechanisms

Types of chronograph watch mechanisms may include:

types (e.g. application of dial scale indications - tachymeter and telemeter)

chronograph operating systems (e.g. pillar wheel actuated or cam controlled)

features (e.g. minute record, hour record, automatic and split second)

performance characteristics of chronograph watches

Appropriate working environment

Appropriate working environment may include:

adequate lighting and ventilation

clean bench and working area

tools and equipment organised and in good condition

ergonomic seating

Record and document repair

Record and document repair may include:

date and extent of repair

cost of replacement part

time spent on procedure

Dismantling and assembly precautions

Dismantling and assembly precautions may include:

inspection of condition and adjustments of chronograph assembly functions

verification of correct recording system operation (e.g. engagement, depthing, end shake, penetration)

correct selection, application and amount of lubrication for chronograph mechanisms

adjustment of timekeeping performance and balance amplitude during chronograph function

Chronograph components

Chronograph components may include:

operating mechanism (e.g. single and double pusher action)

clutch system for chronograph engagement

transmission (e.g. minute and hour record)

flyback and zeroing

Chronograph action

Chronograph action may include:

start, stop, reset to zero

hand zeroing

indexing minute and hour record

Dial and hand fitting

Dial and hand fitting may include:

hand fitting tools and supports

alignments and sychronisation

Watch performance and rate testing

Watch performance and rate testing may include:

beat error diagnosis and adjustment

rate adjustment/positional errors

amplitude (e.g. chronograph start - maximum variation <40 degrees)

Hand tools and equipment

Hand tools and equipment may include:

movement holders for operating chronograph functions

timing machine

rose cutters

tools for removing chronograph driving wheel

hand staking and fitting tools and supports

case opening and closing tools

Clean and safe work environment

Safe and clean work environment may be specified through:

relevant legislation and regulations

enterprise operating procedures

5S housekeeping related principles and procedures (e.g. sort, straighten, shine, standardise, sustain)

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Identify type of chronograph watch mechanisms and components 
Prepare written quotation and inform customer of watch condition and performance concerns, outlining recommended service procedures to be undertaken to remedy identified faults 
Verify and agree on servicing requirements with customer 
Prepare watch for handover 
Establish appropriate working environment 
Record and document repair process 
Open and close chronograph watch cases correctly 
Remove and replace case components, dials and hands, movements and sub-assemblies in correct sequence without damaging or marking 
Verify condition of case pushbuttons, operation and gaskets and replace, as required 
Clean cases and bands, as required 
Apply dismantling and assembly precautions 
Inspect condition of chronograph components 
Lubricate chronograph mechanism with correct type and amount according to manufacturer specifications 
Replace faulty or worn components 
Clean chronograph components 
Inspect chronograph watch for cleanliness and rectify imperfections and faults 
Adjust chronograph components for correct end shake, clearances and penetrations 
Perform pre-service inspection and fault-finding of chronograph action, function and depthings 
Verify and confirm dial and hand fitting, and casing up of chronograph 
Verify watch performance and rate testing 
Perform final adjustment and correction of recording and zeroing mechanism 
Use hand tools and equipment safely and correctly 
Handle components without damaging or marking 
Establish a clean and appropriate work environment 

Forms

Assessment Cover Sheet

MEM21014A - Service mechanical chronograph watches
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

MEM21014A - Service mechanical chronograph watches

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: