GMT Function
A GMT function is a special feature in watches that allows the wearer to track two different time zones at once. The name comes from "Greenwich Mean Time," which is the standard time reference. In job descriptions, this refers to the ability to design, create, repair, or work with watches that have this additional time-telling capability. It's considered a "complication" (extra feature) in watchmaking, and is particularly valued in luxury watches. When recruiters see "GMT" in resumes or job applications, it typically indicates experience with more complex watch mechanisms beyond basic time-telling.
Examples in Resumes
Serviced and repaired luxury timepieces with GMT Function and GMT complications
Assembled and tested GMT movements for high-end watch collections
Specialized in quality control for GMT Function mechanisms in Swiss watches
Typical job title: "Watchmakers"
Also try searching for:
Where to Find Watchmakers
Professional Organizations
Online Communities
Job Resources
Example Interview Questions
Senior Level Questions
Q: How would you approach troubleshooting a malfunctioning GMT mechanism in a luxury timepiece?
Expected Answer: A senior watchmaker should explain the systematic approach to diagnosis, including checking the GMT hand alignment, date changeover interaction, and crown position functions. They should mention the importance of documenting the repair process and quality control measures.
Q: What considerations do you take into account when servicing different brands' GMT movements?
Expected Answer: Should demonstrate knowledge of various GMT movement types from different manufacturers, specific service requirements, and brand-specific quality standards and procedures.
Mid Level Questions
Q: Explain the basic components of a GMT function and how they work together.
Expected Answer: Should be able to describe the GMT hand, hour wheel, and setting mechanism in simple terms, explaining how they interact to display two time zones.
Q: What are common issues you've encountered with GMT functions and how did you resolve them?
Expected Answer: Should discuss typical problems like misalignment, jumping hours, or date mechanism issues, and explain basic troubleshooting and repair approaches.
Junior Level Questions
Q: What is a GMT function in a watch and why is it useful?
Expected Answer: Should explain that it's a feature for tracking two time zones, commonly used by travelers, and describe basic operation of the GMT hand.
Q: What basic tools do you use when working with GMT movements?
Expected Answer: Should be able to list essential watchmaking tools needed for basic GMT function service and explain their basic uses.
Experience Level Indicators
Junior (0-2 years)
- Basic watch movement understanding
- Simple GMT function operation
- Basic tool handling
- Movement cleaning and maintenance
Mid (2-5 years)
- GMT mechanism repair
- Quality control procedures
- Different GMT caliber knowledge
- Independent problem diagnosis
Senior (5+ years)
- Complex GMT movement restoration
- Training and supervision
- Custom modification capability
- Advanced troubleshooting expertise
Red Flags to Watch For
- Lack of basic understanding of time zones
- No experience with luxury watch brands
- Unable to explain different types of GMT movements
- No knowledge of proper watchmaking tools
- Limited understanding of quality control processes
Related Terms
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