Hamilton Jazzmaster Automatic Men’s Watch, 40mm Stainless

Product Overview

The Hamilton Jazzmaster Automatic Men’s Watch brings together timeless design and advanced Swiss watchmaking in a sophisticated 40mm stainless steel case. Designed for the modern man who appreciates both elegance and engineering, this timepiece features a clean silver dial adorned with Roman numerals that exude classic refinement. At its heart lies the reliable H-10 automatic movement, a self-winding caliber that eliminates the need for batteries and delivers consistent performance. Enhanced with an anti-magnetic Nivachron balance spring, the movement resists interference from everyday magnetic fields—ensuring accuracy whether you’re near electronics, smartphones, or household appliances. The watch’s balanced proportions and versatile styling make it suitable for a wide range of occasions, from boardroom meetings to weekend outings. With its durable construction and Swiss-made precision, this watch is built to be a trusted companion for years to come.

Key Features

• Swiss-Made Automatic Movement: The H-10 caliber powers this watch with self-winding efficiency, requiring no battery. Its impressive 80-hour power reserve allows for extended wear between windings, making it ideal for daily use or occasional rotation with other timepieces.
• Anti-Magnetic Protection: Equipped with a Nivachron balance spring, the movement resists magnetic fields commonly found in modern environments. This helps maintain timekeeping accuracy even when exposed to electronic devices, speakers, or magnetic closures.
• Sapphire Crystal Face: The dial is protected by a sapphire crystal, one of the most scratch-resistant materials used in watchmaking. This ensures long-term clarity and helps preserve the watch’s pristine appearance despite daily wear.
• 50m Water Resistance: Rated for 50 meters (5 ATM), the watch can handle splashes, handwashing, and exposure to light rain. It is not designed for swimming, showering, or water sports, but offers reliable protection during everyday activities.
• Roman Numeral Dial Design: The silver dial features Roman numerals at each hour position, combining traditional aesthetics with clear legibility. This classic touch enhances the watch’s refined character.
• Stainless Steel Case & Strap: The 40mm case is crafted from durable stainless steel, offering a comfortable and balanced fit on most wrist sizes. The matching stainless steel strap provides a cohesive, professional appearance that complements both formal and casual attire.
• 3-Hand Analog Display: The watch features hour, minute, and second hands in a clean, uncluttered layout. This minimalist approach emphasizes functionality while maintaining visual elegance.

Technical Specifications

• Case Diameter: 40mm
• Case Material: Stainless Steel
• Dial Color: Silver with Roman Numerals
• Movement: Swiss Automatic (H-10 Caliber)
• Power Reserve: Approximately 80 hours
• Balance Spring: Anti-magnetic Nivachron
• Crystal: Scratch-resistant Sapphire
• Water Resistance: 50 meters (5 ATM)
• Strap: Stainless Steel
• Display: 3-hand analog
• Model Number: H42535150
• Manufacturer: Hamilton Watch
• Department: Men
• ASIN: B08GQLM63P
• Date First Available: December 2, 2020
• Package Dimensions: 5.51 x 5.51 x 4.76 inches; 1.61 Pounds

Benefits & Use Cases

This watch is crafted for men who value both form and function. Its 40mm case size strikes a perfect balance—large enough to make a statement, yet refined enough for everyday wear on medium to larger wrists. The automatic movement appeals to those who appreciate mechanical craftsmanship, offering the satisfaction of a self-sustaining timepiece that evolves with your routine. The anti-magnetic technology ensures reliable performance in environments where electronic interference is common, such as offices, airports, or modern kitchens. With 50m water resistance, the watch stands up to everyday moisture exposure, from washing hands to unexpected rain. The sapphire crystal and stainless steel construction contribute to long-term durability, making it a practical choice for daily wear or a thoughtful gift for someone who values Swiss precision and timeless design.

Important Notes

While the watch is water-resistant to 50 meters, it should not be worn during swimming, showering, or any water-based activities. Exposure to water under pressure or prolonged submersion may compromise its integrity. Avoid operating the crown or pressing any buttons while in water. To maintain optimal performance and longevity, periodic servicing by an authorized Hamilton technician is recommended. The manufacturer’s warranty is available upon request through customer service. The package includes the watch only; additional accessories, extra straps, or presentation boxes are not specified as included. For care instructions and maintenance guidelines, refer to official Hamilton documentation.