**[Product Name]**
Hamilton H69439131 Khaki Field Mechanical Men's Metal Watch
**[Brand Introduction]**
Hamilton is a Swiss watch brand established in 1892, known for combining American tradition with Swiss precision. The brand began by producing military and aviation watches and has since created a wide range of lifestyle watches. Its military-inspired design elements and durability have garnered a loyal following, and Hamilton watches frequently appear in American cinema.
**[Details]**
- Reference Number (Model Name): H69439131
- Brand: Hamilton
- Origin: Switzerland
- Collection: Khaki Field Mechanical
- Movement: Caliber H-50, Mechanical Hand-Winding
- Case: Stainless steel material, 38mm diameter, 9.5mm thickness, 20mm lug width
- Dial: Black color, featuring large Arabic numerals and triangular indexes
- Glass: Durable sapphire crystal
- Waterproof: 5 bar (50m) water resistance
- Power Reserve: 80 hours
- Watch Band: Stainless steel metal band
- Moon Phase: Unidirectional bezel, 24-hour display on the dial
**[Composition (Material)]**
- Case: Corrosion-resistant stainless steel
- Glass: Sapphire crystal, excellent in transparency and durability
- Band (Watch Strap): Stainless steel
- Movement: Mechanical structure (composed of springs, gears, chains, etc.)
**[Instructions for Use]**
1. Pull out the crown (handle) to wind manually by turning it clockwise.
2. While pressing the crown, adjust the time and minutes, seconds.
3. Regularly wind the watch once a day to maintain the power reserve (up to 80 hours).
4. Be cautious to avoid impacts or drops.
5. If exposed to water, wipe immediately and use only within the rated water resistance (5 bar / 50m).
**[Precautions]**
- Avoid placing the watch in direct sunlight, high-temperature areas, or any magnetic materials.
- Do not expose to strong magnetic fields, high temperatures, chemical agents, shocks, or harsh conditions.
- Do not dismantle on your own; contact the official service center for any issues.
- Performance may decrease in extreme environments.
**[Other References]**
Hamilton watches can be utilized in military, outdoor, and various other situations, and the straps can be changed to different materials for versatility.
To request a return or exchange, please note that it is mandatory to provide a video of the unpacking of the package.
