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Hamilton Khaki Field Mechanical Power Reserve 40mm, reference H69509130. Offered as a full kit; see the photos for everything included. The Khaki Field Mechanical Power Reserve carries Hamilton's military heritage with a complication new to the collection: a fuel-gauge style subdial that tracks remaining autonomy from F (Full) to E (Empty). It runs the exclusive Swiss H-23 hand-wound caliber with an 80-hour power reserve and a magnetic-resistant Nivachron hairspring. The fully sandblasted stainless steel case hides everyday marks and dings, and the high-contrast matte black dial uses vintage Old Radium Super-LumiNova on the syringe hands and markers under a sapphire crystal with AR coating. Specifications Reference: H69509130 Case diameter: 40mm Thickness: 11.95mm Lug-to-lug: 48.9mm Lug width: 20mm Case material: sandblasted stainless steel Crystal: sapphire with AR coating Movement: Hamilton H-23 hand-wound mechanical, 80-hour power reserve Bracelet: stainless steel Water resistance: 100 meters as originally rated; not pressure tested Pre-owned, running and keeping time.