The Khaki Field Mechanical Power Reserve 40mm honors heritage field watch design and essential functionality while introducing modern watchmaking technology. Powered by an exclusive manual-winding H-23 caliber developed by ETA, this timepiece features an 80-hour power reserve complication displayed directly on the white dial with full and empty markers.

Constructed with a durable stainless steel case and a scratch-resistant sapphire crystal, the watch incorporates a Nivachron balance spring designed to reduce the effects of magnetic fields, shocks, and temperature variations.

Fitted with a rugged khaki green NATO textile strap with a pin buckle, the timepiece offers 100 m water resistance for dependable everyday performance.

Key Features

Reference	H69509910
Caliber	H-23
Collection	Khaki Field
Movement	Mechanical
Watch Function	Power reserve
Case size	40 mm
Thickness	11.95 mm
Dial color	White
Case material	Stainless steel
Crystal	Sapphire
Lug to lug	48 mm
Lug width	20 mm
Power reserve	80 hours
Status	Current collection
Water Resistance	10 bar (100 m)
Anti Reflection	Yes
Nivachron	Yes
Super Luminova	Yes
Strap reference	H6006941021
Strap type	Textile
Buckle type	Pin buckle
Buckle width	20 mm

Highlights

POWER RESERVE INDICATOR: Easily check how much power remains, keeping the timepiece ready for use.
MANUAL WINDING: The mechanical watch can be wound by turning the crown clockwise.
STAINLESS STEEL CASE: A highly resistant alloy composed of steel and chromium. It is nearly impervious to rust, tarnish, and corrosion.
Sapphire Crystal: Synthetic sapphire crystal is a tough scratch-resistant material.
NIVACHRON™ BALANCE SPRING: Nivachron™ is an alloy used to produce balance springs to resist magnetic fields and improve accuracy. It reduces the effects of magnets, temperature, and shocks.
WATER RESISTANCE: The timepiece is resistant up to 10 bar (100m) / 145 psi (328 ft).

Frequently asked questions

What movement powers this timepiece?

It is powered by the manual-winding H-23 mechanical caliber, developed exclusively by ETA for Hamilton.

How long is the power reserve?

The watch features an extended power reserve of up to 80 hours.

How does the power reserve indicator work?

The power reserve complication is integrated directly on the dial, displaying 'F' for full and 'E' for empty.

What are the case dimensions?

The case measures 40 mm in diameter, 11.95 mm in thickness, with a 48 mm lug-to-lug distance and 20 mm lug width.

What is the water resistance rating?

The watch provides water resistance up to 10 bar (100 m) / 145 psi (328 ft).

How is the watch wound?

It is wound manually by turning the crown clockwise.

Hamilton Khaki Field Mechanical White Dial Men's Watch H69509910