Head-to-Head Comparison

Frederique Constant Slimline Moonphase Manufacture vs Hamilton Khaki Aviation Pilot Auto

Frederique Constant's dress watch meets Hamilton's pilot watch

Quick Verdict

The Hamilton Khaki Aviation Pilot Auto ($1,000–$1,500) delivers Hamilton/ETA Automatic technology in the tier below the Frederique Constant Slimline Moonphase Manufacture ($2,500–$5,000). The Khaki Aviation Pilot Auto measures 38mm and is rated 100m (10 ATM). The Slimline Moonphase Manufacture justifies its premium with Swiss Made heritage and Automatic FC-705 (In-House). Both represent excellent choices in the luxury watch category.

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Frederique Constant Slimline Moonphase Manufacture

Frederique Constant

Slimline Moonphase Manufacture

$2,500–$5,000

Hamilton Khaki Aviation Pilot Auto

Hamilton

Khaki Aviation Pilot Auto

$1,000–$1,500

Specifications Compared

FeatureFrederique Constant Slimline Moonphase ManufactureHamilton Khaki Aviation Pilot Auto
Price$2,500–$5,000$1,000–$1,500
Case Size42mm38mm
MovementAutomatic FC-705 (In-House)Automatic H-10 (ETA 2824-2 base)
Caliber TypeIn-House Automatic ManufactureHamilton/ETA Automatic
Power Reserve42 Hours80 Hours
Water Resistance30m (3 ATM)100m (10 ATM)
CrystalConvex SapphireSapphire Crystal
Case MaterialStainless SteelStainless Steel
OriginSwiss MadeSwiss Made

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Frederique Constant's design language vs Hamilton's approach

The Frederique Constant Slimline Moonphase Manufacture features a Stainless Steel case at 42mm with Convex Sapphire protection. The Hamilton Khaki Aviation Pilot Auto offers Stainless Steel construction at 38mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Hamilton

Automatic FC-705 (In-House) vs Automatic H-10 (ETA 2824-2 base)

The Slimline Moonphase Manufacture runs the Automatic FC-705 (In-House) (In-House Automatic Manufacture, 42 Hours power reserve) at 28,800 vph (4 Hz) frequency. The Khaki Aviation Pilot Auto uses the Automatic H-10 (ETA 2824-2 base) (Hamilton/ETA Automatic, 80 Hours reserve) at 21,600 vph (3 Hz). The Khaki Aviation Pilot Auto offers a longer power reserve.

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Wearability & Fit

Edge: Hamilton

42mm vs 38mm — different wrist presence

At 42mm, the Slimline Moonphase Manufacture has a bolder wrist presence compared to the Khaki Aviation Pilot Auto at 38mm. Water resistance differs: 30m (3 ATM) vs 100m (10 ATM).

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Value & Cost of Ownership

Edge: Hamilton

Hamilton sits in the lower tier

The Frederique Constant Slimline Moonphase Manufacture sits at $2,500–$5,000 and the Hamilton Khaki Aviation Pilot Auto at $1,000–$1,500. On the specs that outlast any price: the Slimline Moonphase Manufacture uses Convex Sapphire with 42 Hours, against Sapphire Crystal and 80 Hours on the Khaki Aviation Pilot Auto. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Hamilton

30m (3 ATM) vs 100m (10 ATM)

The Slimline Moonphase Manufacture is rated to 30m (3 ATM) while the Khaki Aviation Pilot Auto handles 100m (10 ATM). The Khaki Aviation Pilot Auto offers superior water resistance.

Our Verdict

Frederique Constant

Slimline Moonphase Manufacture

Choose the Frederique Constant Slimline Moonphase Manufacture if you prioritize In-House Automatic Manufacture engineering, Swiss Made craftsmanship, and 30m (3 ATM) water resistance. At $2,500–$5,000, it delivers Automatic FC-705 (In-House) with 42 Hours power reserve.

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Hamilton

Khaki Aviation Pilot Auto

Choose the Hamilton Khaki Aviation Pilot Auto if you value Hamilton/ETA Automatic technology, Swiss Made heritage, and 38mm proportions. At $1,000–$1,500, the Automatic H-10 (ETA 2824-2 base) with 80 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Frederique Constant Slimline Moonphase Manufacture and Hamilton Khaki Aviation Pilot Auto represent two distinct approaches to fine watchmaking — the Frederique Constant bringing Swiss Made tradition while Hamilton delivers Swiss Made engineering.

Frequently Asked Questions

Neither is objectively better — they serve different preferences. The Frederique Constant Slimline Moonphase Manufacture ($2,500–$5,000) offers Automatic FC-705 (In-House) with 42 Hours power reserve, while the Hamilton Khaki Aviation Pilot Auto ($1,000–$1,500) features Automatic H-10 (ETA 2824-2 base) with 100m (10 ATM) water resistance. Choose based on your priorities: Swiss Made craftsmanship vs Swiss Made engineering.
The Hamilton Khaki Aviation Pilot Auto offers better upfront value, sitting a tier lower at $1,000–$1,500. However, the Frederique Constant Slimline Moonphase Manufacture may justify its premium with superior finishing, heritage, or resale value.
Both are suitable for daily wear. The Slimline Moonphase Manufacture at 42mm with 30m (3 ATM) water resistance handles everyday situations. The Khaki Aviation Pilot Auto at 38mm with 100m (10 ATM) is similarly capable. The Slimline Moonphase Manufacture uses Convex Sapphire while the Khaki Aviation Pilot Auto uses Sapphire Crystal.

How This Page Was Made

Our comparisons are generated from a hand-maintained specification database and reviewed under our editorial standards. We use AI tools to assemble pages from that data. We don’t invent specs: every number traces back to the database, and when we correct an entry, the fix is applied site-wide. As an Amazon Associate, The Horologist earns from qualifying purchases.