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 type, function, construction and components
Watch type, function, construction and components may include:
manual wound
shock-resistance system (e.g. Incabloc and Kif)
regulating system (e.g. conventional, free sprung and Etachron)
power reserve indicator
mainspring
gear train
escapement
oscillator
winding and setting
Record and document repair
Record and document repair may include:
extent and date of repair
cost of replacement part
time spent on procedure
Appropriate working environment
Appropriate working environment may include:
clean bench and working area
adequate lighting and ventilation
tools and equipment are organised and in good condition
ergonomic seating
ventilation
Case components and movement sub-assemblies
Case components and movement sub-assemblies may include:
glass and bezel (e.g. rotating)
case back and gaskets
crown, pendant, gaskets
balance and cock assembly
pallet, escapement components
barrel and mainspring assembly
gear train
winding and setting mechanisms
Inspect condition
Inspect condition may include:
originality of components
corrosion
cleanliness
wear
Cleaning methods
Cleaning methods may include:
conventional
ultrasonic
vibrational
hand cleaning
types of watch cleaning solutions used
precautions for handling and disposing cleaning solutions
Verify and adjust hand setting tension
Verify and adjust hand setting tension may include:
test for correct friction (e.g. second hand or train not reversing)
conventional cannon pinions
friction driving wheel
short off centre
Watch assembly inspections and precautions
Watch assembly inspections and precautions may include assessing:
winding and setting engagement, operation and lubrication
gear train end shake, backlash and lubrication
mainspring engagement, hooking, tension and lubrication
escapement action, operation e.g. pallet jump and lubrication
oscillator end shake, balance spring condition and correct amount lubrication
Mechanical watch timing machine
Mechanical watch timing machine may include:
Witschi watch expert or equivalent giving an indication of rate in seconds a day, beat error and amplitude
Watch performance and rate testing
Watch performance/rate testing may include:
in-beat under 0.5 milliseconds
rate adjustment +/- 10 seconds per day
amplitude minimum 220 - 270 degrees fully wound
Hand tools and equipment
Hand tools and equipment may include:
timing machine
case opening/closing tools
oilers and oil pots
hand cleaning (e.g. pith, peg wood, rodico and solvents jar)
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 service mechanical 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:
use correct dismantling and reassembling techniques (e.g. correct sequence for observations and fault diagnosis)
undertake function and performance testing (e.g. adjustment of rate, in-beat and amplitude)
use lubrication techniques (e.g. correct type, amount, application, cleanliness and without spilling)
safely clean watch movements and cases by machine and hand
Context of and specific resources for assessment
Assessment may occur on the job or in a simulated working 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.