Maintaining and Repairing Mechanical Watches A Practical Guide By: MARK W. WILES Infantry Watches G10 300m Sapphire crystal is highly prized

Sapphire crystal is highly prized by military personnel

starting the timing hand in 1/5 sec increments

Crystal: Scratch and Shatter-Resistant Sapphire Crystal

Titanium Case: Lightweight and durable

Maintaining and Repairing Mechanical Watches A Practical Guide By: MARK W. WILES Infantry Watches G10 300m Sapphire crystal is highly prizedThis invaluable and practical book is written by a watch repairer with over twenty years of experience. It is aimed primarily at novice mechanical watch repairers, though those with more experience will also find it highly useful. Key Features: Workspace Essentials: Covers the essential requirements of a workspace. Tools: Discusses basic tools, their usage, and maintenance. Disassembly and Reassembly: Illustrates how to take a mechanical watch apart