# Hamilton x Porter 77th Anniversary Khaki Field Auto LE-770 Review by A.I. WatchMetrics

## Watch Summary
The Hamilton x Porter 77th Anniversary Khaki Field Auto LE-770 is a limited-edition field watch celebrating Porter's 77th anniversary through a collaboration that infuses military-inspired tool watch aesthetics with premium Japanese leather craftsmanship, boasting a 42mm sandblasted stainless steel case, black dial with bold Arabic numerals at 12-3-6-9 and subtle Porter branding, Super-LumiNova on hands and markers for low-light legibility, and the automatic H-10 movement delivering an impressive 80-hour power reserve—perfect for adventurers, field enthusiasts, and collectors who value historical nods, rugged versatility, and exclusivity limited to just 770 pieces worldwide.

## Overall Watch Rating: 7.0/10.0

**Versatility Metric (9.0/10.0)** - Excels as a do-it-all field watch suitable for daily wear, outdoor pursuits, and casual settings, much like the iconic Rolex Explorer but at a fraction of the cost.

**Dials & Design Metric (8.7/10.0)** - The clean black dial with lumed Arabic numerals and Porter accents delivers timeless field watch appeal with a unique collaborative flair, rivaling the legibility of vintage military pieces from the 1940s.

**Material Metric (8.5/10.0)** - Stainless steel 316L case with sapphire crystal and sandblasted finishing provides robust, scratch-resistant construction comparable to higher-end tool watches from Tudor.

**Movement Metric (8.3/10.0)** - The H-10 automatic offers exceptional 80-hour power reserve and reliable performance in a decorated caliber, outperforming standard ETA movements found in many mid-tier automatics.

**History & Innovation Metric (8.1/10.0)** - Draws on Hamilton's storied WWII military legacy while introducing a modern long-reserve movement and brand collab, akin to Omega's heritage revivals.

**Functions Metric (5.5/10.0)** - Covers essential timekeeping with hours, minutes, seconds, and date reliably, on par with basic automatic field watches like the Seiko Alpinist.

**Brand Metric (5.4/10.0)** - Hamilton delivers dependable mid-tier Swiss quality with strong value heritage, similar to Citizen's Promaster line but with added American railroad roots.

**Rarity Metric (5.2/10.0)** - Limited to 770 pieces with collaboration exclusivity boosts appeal, though production volume keeps it more accessible than ultra-rare independents under 100 units.

**Complications Metric (4.0/10.0)** - Simple date window adds utility without complexity, standard for field watches but trailing multifunction pieces like the Blancpain Fifty Fathoms.

## Total Performance Score (TPS): 9.9

## WM Collector Grade: A+

## Performance Insights: Shines in versatility, materials, movement, and design for everyday tool watch duties while rarity and brand add collector interest, delivering outstanding value well below its $4,400 implied price based on performance benchmarks.

## TPS Interpretation: Exceptional Value: The watch punches far above its weight in build quality, heritage, and limited appeal, making it a steal for enthusiasts at current pricing.

## Watch Data
[https://www.hamiltonwatch.com/dw/image/v2/BBSJ_PRD/on/demandware.static/-/Sites-hamilton-master/default/dw4d5b4b98/Full/H69555730_Hamilton_Khaki_Field_Auto_PORTER_77th_Anniversary_LE_770_1.png?$static$] - [https://www.hamiltonwatch.com/dw/image/v2/BBSJ_PRD/on/demandware.static/-/Sites-hamilton-master/default/dw123a0f3b/Full/H69555730_Hamilton_Khaki_Field_Auto_PORTER_77th_Anniversary_LE_770_2.png?$static$]; [https://www.fratellowatches.com/wp-content/uploads/2024/06/Hamilton-x-Porter-Khaki-Field-Auto-77th-Anniversary-Limited-Edition-H69555730-lume.jpg] - [Khaki Field Porter LE]; [Hamilton] - [Khaki Field Auto Porter 77th Anniversary LE/770]; [Switzerland] - [https://www.hamiltonwatch.com/en-us/h69555730-khaki-field-auto-porter-77th-anniversary-le-770.html]; [https://www.hodinkee.com/articles/hamilton-porter-khaki-field-auto] - [Automatic]; [H-10] - [1]; [Limited to 770 pieces collaboration with Porter bags for their 77th anniversary, featuring exhibition caseback with LE engraving, 80h power reserve field watch] - [42]; [50]; [11.75]; [22]; [100]; [80]; [21600]; [Super-LumiNova]; [25]; [Stainless Steel 316L sandblasted]; [Sapphire]; [Fixed sandblasted]; [Exhibition stainless steel with sapphire]; [Screw-down]; [Brown Scotch linen calf leather by Porter with stainless buckle]; [Round]; [Black with Arabic numerals]; [Yes]; [Yes]; [No]; [No]; [No]; [No]; [No]; [No]; [No]; [No]; [No]; [No]; [No]; [No]; [No]; [No]; [No]; [No]; [No]; [Yes]; [No]; [No]; [No]; [No]; [No]; [Skeleton] - [No]; [Vintage] - [No]; [StyleFormal] - [No]; [StyleCasual] - [Yes]; [StyleSports] - [Yes]; [StyleTravel] - [No]; [StyleAdventure] - [Yes]; [StyleCollector] - [Yes]; [StyleTool] - [Yes]; [StyleStatement] - [Yes]; [StyleVintage] - [No]; [StyleSmart] - [No]; [StyleCustom] - [Yes]; [9.9] - [A+]; [4400];

**A.I. WatchMetrics Review v37.4 Grok 4 Fast. December 19, 2025.**