Khaki Field King Day-Date Automatic 40mm

The Hamilton Khaki Field collection is a rugged and versatile line of military-inspired watches that reflects Hamilton’s long history of supplying timepieces to armed forces, combining utilitarian design with modern Swiss craftsmanship. Characterized by clean, highly legible dials, matte finishes, and durable cases, these watches are built for reliability in demanding conditions while remaining understated enough for everyday wear. The collection includes both hand-wound and automatic models, often featuring robust movements with extended power reserves, sapphire crystals, and water resistance suited for outdoor use. Blending heritage aesthetics with contemporary performance, the Khaki Field series offers timeless, no-nonsense functionality for those who appreciate practicality, durability, and classic military style.

Specifications

• MOVEMENT: Swiss Made CALIBER H-40 Automatic
  
• ENHANCEMENT: Nivachron™ Balance Spring
• POWER RESERVE: 80 Hours
• DIAL COLOR: Black
• CASE CRYSTAL: Anti-Reflective Sapphire Crystal
  
• CASE MATERIALS: Stainless Steel
  
• CASE DIAMETER: 40mm
• LUG DISTANCE: 20mm
  
• WATER RESISTANCE: 10 Bar (100m)
• CASE BACK: Open Display Case
• FEATURES: Super Luminova®

FAQ

• What is an automatic watch?
  • Watch collectors are drawn to automatic timepieces for their embodiment of true horological luxury and craftsmanship. Powered by the natural motion of the wearer, these finely engineered movements eliminate the need for batteries while showcasing a seamless, sweeping seconds hand and intricate mechanical artistry beneath the surface. Beyond function, an automatic watch represents heritage, prestige, and enduring value—often becoming a refined statement piece and a legacy to be passed down through generations.
• What makes the Caliber H-40 unique?
  • The H-40 automatic movement is a modern Swiss caliber developed by Hamilton Watch Company. It features an extended 80-hour power reserve—allowing the watch to run for over three days off the wrist—along with a reduced beat rate for improved efficiency. The H-40 is equipped with a Nivachron balance spring, offering strong resistance to magnetism and better long-term accuracy. Designed for reliability and everyday durability, it’s a practical, low-maintenance movement.
• Why is the Nivachron™ balance spring significant?
  • In its ongoing commitment to excellence, Hamilton has incorporated the revolutionary Nivachron™ balance spring into this movement. This innovative titanium-based metal alloy reduces magnetic interference and is remarkably robust against impacts and the effects of time. Offering high added value, this technological advancement guarantees greater precision and exceptional durability.
• What is Super-Luminova®?
  • Super-LumiNova® is widely used by Hamilton to enhance legibility in low-light conditions, applied to hands, hour markers, and sometimes bezel details across many of its models. This advanced, non-radioactive material absorbs light and emits a bright, long-lasting glow in the dark, ensuring the time remains easy to read without any external power source.