This unit of competency applies to the selection and replacement of electronic watch power sources and bands whilst operating in a watch service and repair workshop or jewellery store offering watch service and repair with access to the appropriate equipment. Applications may also be found in kiosks offering jewellery, key cutting, watch service and repair services.

Some knowledge of watch glasses, gasket and other component removal procedures is required. However, this unit does not cover specific replacement procedures.

Testing functions relate only to the measurement of voltage, consumption and resistance, and checking for case integrity. For example, when power cells are replaced, it is necessary to establish circuit performance by electrical testing and case integrity by water-resistance testing.

To perform additional servicing of watch cases MEM21003A Perform watch case servicing, repair and refurbishment should be selected.

Band: A

Unit weight: 2 points

ELEMENT

PERFORMANCE CRITERIA

1. Establish servicing requirements and liaise with customer

1.1. Inspect watch condition and type and discuss performance concerns with customer

1.2. Verify and agree on servicing requirements with customer

1.3. Carry out pre-repair tests to verify water-resistance

1.4. Prepare watch for handover

1.5. Record and document repair process

2. Open and close watch cases

2.1. Select and use workshop tools and equipment appropriately

2.2. Identify watch and band construction and components

2.3. Open and close watch cases correctly

2.4. Inspect parts and report and record results

2.5. Verify gasket condition and replace, as required

2.6. Clean cases and bands, as required, during and after repair

3. Select and replace power sources

3.1. Remove power sources using appropriate tools and equipment

3.2. Inspect watch for battery leakage damage and clean or refer for further service, as appropriate

3.3. Assess physical condition of existing cell and its operation under load

3.4. Select, replace and secure appropriate replacement power sources

3.5. Perform integrated circuit resetting or all clear operations as required

3.6. Handle, store and dispose of power sources correctly and in accordance with environmental guidelines

4. Perform electrical testing

4.1. Set up and use multimeters correctly

4.2. Test cell terminal voltage under load using correct methods and equipment

4.3. Test watch circuitry for current consumption using correct methods and equipment

4.4. Confirm results against manufacturer specifications

5. Select and replace bands

5.1. Identify band attachment and removal method

5.2. Remove and replace bands and components, as necessary, using appropriate methods, tools and equipment

5.3. Determine dimensions and type of replacement bands/ components required

6. Conduct water-resistance testing

6.1. Identify watches requiring water-resistance and/or pressure testing

6.2. Select appropriate water-resistance testing methods and equipment according to watch type

6.3. Set up and use equipment to verify results

Required skills

Required skills include:

identifying, handling and storing power cells, batteries and capacitors

handling basic watch repairers' tools (e.g. tweezers, screwdrivers and eyeglasses)

confirming correct selection of replacement cells by size, capacity and function

using measuring tools (e.g. vernier callipers and band width gauges)

setting up and using multimeters and interpreting readings

conducting water-resistance testing

communicating with customers

Required knowledge

Required knowledge includes:

watch construction:

mechanical, electronic, digital, analog, duo, kinetic and auto quartz

function/features/design (e.g. basic operating principle for electronic watches)

band construction, materials and components:

clasps, styles, materials and attachment methods

links, end pieces, clasps, buckles, chains, pins and spring bars

operating principles of power cells, batteries, capacitors and voltages (1.55 V - 3 V)

how to confirm battery capacity

handling, storage and disposal procedures for watch power sources

environmental guidelines and regulations relevant to the disposal of watch power sources

multimeter types and how to set up, use and record values

Australian standards for water-resistant watches

methods of water-resistance testing for watches and advantages and disadvantages of each method

occupational health and safety (OHS) regulations and procedures

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 replace quartz or electronic watch power sources and bands 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:

open and close watches without causing damage to watch or movement

confirm watch movement's performance

select correct replacement power sources for watch type and functions

confirm watch case condition and water-resistance.

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.

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.

Preparing watch for handover

Preparing watch for handover may include:

confirm watch keeping on time

function checking (e.g. calendar, light, chronograph and alarm)

display setting (e.g. time, calendar and other multi-functions)

Electronic watch

Electronic watch includes watches with:

quartz crystal

kinetic mechanism

tunic fork

electronic balance

Record and document repair

Record and document repair may include:

date and extent of repairs completed

cost of components replaced or used

time spent on procedure

marking the date of fitting for replacement cell/code

electrical testing results (e.g. current consumption/ running time calculated)

water-resistance test results

Workshop tools and equipment

Workshop tools and equipment may include:

hand tools appropriate to watch case construction and repair of watches

personal protective equipment

non-conductive tweezers, case opening and closing tools, glass and case press, plastic sheet protection, cleaning brushes and rodico

Watch and band construction and components

Watch and band construction and components may include:

mechanical, electronic, digital, analog, duo, kinetic and auto quartz

bracelets, bands, clasps, styles, straps and material construction

Power sources

Power sources may include:

primary and secondary cells

silver oxide cells, including high, low and multi-drain types

capacitors

lithium

Band attachment and removal

Band attachment and removal may include:

springlug, tapered pin, cotter pin and screwed

Multimeters

Multimeters may include:

analog

digital

external power supplies

ampere

volts

Ohms

Water-resistance testing methods

Water-resistance testing methods may include:

Australian standard for watches and water-resistant/divers watches

vacuum or over pressure

air leak

water immersion

condensation test

Unit sector

Horology

This unit contains employability skills.