Elements and Performance Criteria

RANGE STATEMENT
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.
Watch case type, function, construction and components
Watch case type, function, construction and components may include:
pocket watch, wrist watch, ring watch, necklace and specialist watches
non water-resistant (e.g. two and three piece case)
water-resistant (e.g. two piece case)
monocoque (e.g. one piece case)
materials (e.g. precious metals, stainless steel, ceramic, titanium and others)
case body, bezel glass, case back, pushbutton, case ring and gaskets
Watch case/band condition
Watch case/band condition may include:
completeness
scratches, dents and worn plating
general wear and tear
water-resistance performance
Recommended service procedures
Recommended service procedures may include:
replace worn or damaged components
repair or refurbish
case refurbishment to customer requirements
Record and document repair
Record and document repair may include:
extent and date of repair
cost of replacement parts
time spent on procedure
Appropriate working environment
Appropriate working environment may include:
clean bench and working area
adequate lighting and ventilation
tools and equipment organised and in good condition
ergonomic seating
dust extraction
Case components and movement sub-assemblies
Case components and movement sub-assemblies may include:
glass, spring fit, armoured, mineral and sapphire
bezel (e.g. rotating)
case back and gaskets
crown
pendant (e.g. friction fit or screwed)
gaskets
Inspect condition
Inspect condition may include:
originality of components
cleanliness
wear
damage
corrosion
Watch case assembly inspections and precautions
Watch case assembly inspections and precautions may include:
use plastic protection whilst opening and closing
alignment of components (e.g. case back, bezel and glass)
security of pendants (e.g. friction and threaded)
pushbutton operation
screw crowns and stem length
damage to stem when securing crown
cleanliness
Water-resistance rating
Water-resistance rating may include:
minimum standard of 20 metres, or additionally to 30 metres and 50metres)
minimum standards for divers watch of 100 metres or up to 3000 metres
Equipment for water-resistance testing
Equipment for water-resistance testing may include:
vacuum
over pressure
combined test
water immersion method
air leak method
condensation test
Hand tools and equipment
Hand tools and equipment may include:
pin vices and case holders
case opening and closing tools
glass press and vigor tool
adhesives
polishing machines and various grades of buff wheels
polishing and graining (e.g. 3M media in various grades)
Clean and safe work environment
Clean and safe 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)

EVIDENCE GUIDE
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 perform watch case servicing, repair and refurbishment 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:
service, inspect, repair and/or replace watch case components (e.g. glass, crown, pendants and pushbuttons) to manufacturer specifications
select and use appropriate workshop tools, equipment and media for watch case servicing, polishing and graining
determine and conduct appropriate tests for water-resistant watches
safely clean watch cases and bands (e.g. by machine/hand).
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.