Hamilton Khaki Navy GMT Ref. H77615333
Dive / Travel (GMT) Tool Watch · Hamilton (The Swatch Group). Tier: Premium/Entry-level Luxury. Hamilton is renowned for its American heritage combined with modern Swiss precision.
Period: Modern Tool Watch (2000s-present). It features a contemporary oversized case design, multiple crowns for internal complications, and an ultra-functional aesthetic typical of early 21st-century military-inspired watchmaking.
Type
Dive / Travel (GMT) Tool Watch
Brand
Hamilton (The Swatch Group). Tier: Premium/Entry-level Luxury. Hamilton is renowned for its American heritage combined with modern Swiss precision.
Movement
Automatic, Hamilton Caliber 2893-1 (based on ETA 2893-2). Frequency: 28,800 bph (4Hz). Power reserve: approx. 42 hours. Features 21 jewels and a GMT second time zone complication.
Dimensions
Case Diameter: 42mm, Thickness: 12.5mm, Lug-to-Lug: 52mm, Lug Width: 21mm. It wears larger than 42mm due to the prominent crowns at 2, 4, and 9 o'clock.
Description
The Hamilton Khaki Navy GMT is a robust, multi-functional tool watch designed for global travelers and water sports enthusiasts. Its unique three-crown architecture gives it a distinct 'Super Compressor' vibe, while the inclusion of a city-name window at 6 o'clock simplifies the tracking of international time zones. It successfully bridges the gap between a professional diver and a functional pilot's watch.
Key Features
Triple-crown configuration; GMT window at 9 o'clock; rotating city window at 6 o'clock; T-shaped lugs; syringe-style hands; and a solid 200m depth rating.
Dial Description
Black sunburst dial with white Arabic numerals. Features a 24-hour inner ring for the T2 (GMT) time zone indicated via a window at 9 o'clock, a City/Time-Zone indicator at the 6 o'clock window (showing 'Lanai Hawaii' in the image), and a standard date window at 3 o'clock. Hands are luminous syringe-style baton hands.
Case Material
Brushed 316L Stainless Steel. The finish is primarily matte to reduce glare, consistent with its tool watch heritage, with polished accents on the crowns and bezel edges.
Crystal Type
Scratch-resistant sapphire crystal, flat profile, with internal anti-reflective coating.
Bezel Details
Unidirectional rotating external dive bezel made of stainless steel with embossed 60-minute scale and a luminous pip at 12. Also features an internal rotating bezel operated by the crowns to align time zones.
Crown & Pushers
Three screw-down crowns: Crown at 2 adjusts the internal city disk; Crown at 4 adjusts time, date, and GMT hand; Crown at 9 adjusts the internal dive-time/countdown scale.
Bracelet or Strap
Black rubber strap with white contrast stitching and a signature Hamilton 'H-shaped' stainless steel pin buckle. This particular model is also often found on a steel multi-link bracelet.
Caseback Details
Screwed-in exhibition caseback with a sapphire or mineral glass window, revealing the movement and a semi-skeletonized rotor. Engraved with 'Water Resistant 200M' and reference numbers.
Movement Type
Automatic, Hamilton Caliber 2893-1 (based on ETA 2893-2). Frequency: 28,800 bph (4Hz). Power reserve: approx. 42 hours. Features 21 jewels and a GMT second time zone complication.
Water Resistance
200 Meters (20 ATM). Suitable for swimming, snorkeling, and recreational scuba diving. Not intended for professional saturation diving.
Origin & Provenance
Swiss Made. Manufactured in Biel/Bienne, Switzerland, using an ETA-based in-house modified movement.
Age Estimate
Circa 2005-2015. This specific model was a staple of the Khaki Navy line for over a decade before being superseded by the Scuba and Frogman models.
Cultural Significance
Hamilton was the primary supplier to the US military for decades; this modern line reflects that heritage while adapting to the needs of the modern traveler. It is widely considered one of the best value-for-money GMT watches in the secondary market.
Condition Notes
Good condition. There are visible surface scratches on the external steel bezel (notably between 20 and 30). The rubber strap shows slight signs of wear but remains intact. The sapphire crystal appears clear and free of major chips.
Value Estimate
MSRP was approximately $945. Secondary market value currently ranges from $450 to $650 depending on condition and whether the original box and papers are included.
Care & Maintenance
Mechanical service recommended every 5-7 years. Ensure all three crowns are fully screwed down before any water exposure. Gaskets should be pressure-tested annually for water resistance integrity.
Similar Watches
Longines Legend Diver (internal bezel style), Seiko 'Alpinist' GMT, and Mido Ocean Star GMT. The Hamilton is distinct for its specific city-window display.
Interesting Facts
The city names on the internal disk are not standard UTC offsets but often represent iconic diving or island locations, such as Lanai or Midway, highlighting its 'Navy' maritime theme over a standard 'GMT-Master' aviation theme.