Head-to-Head Comparison

Frederique Constant Slimline Moonphase Manufacture vs Invicta Pro Diver Automatic 23681

Frederique Constant's dress watch meets Invicta's diver

Quick Verdict

The Invicta Pro Diver Automatic 23681 ($50–$100) delivers Automatic (Seiko NH35A) technology in the tier below the Frederique Constant Slimline Moonphase Manufacture ($2,500–$5,000). The Pro Diver Automatic 23681 measures 40mm and is rated 200m. 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.

Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.

Frederique Constant Slimline Moonphase Manufacture

Frederique Constant

Slimline Moonphase Manufacture

$2,500–$5,000

Invicta Pro Diver Automatic 23681

Invicta

Pro Diver Automatic 23681

$50–$100

Specifications Compared

FeatureFrederique Constant Slimline Moonphase ManufactureInvicta Pro Diver Automatic 23681
Price$2,500–$5,000$50–$100
Case Size42mm40mm
MovementAutomatic FC-705 (In-House)Automatic NH35A
Caliber TypeIn-House Automatic ManufactureAutomatic (Seiko NH35A)
Power Reserve42 Hours
Water Resistance30m (3 ATM)200m
CrystalConvex SapphireMineral Glass
Case MaterialStainless Steel
OriginSwiss MadeInvicta (Japanese movement)

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Frederique Constant's design language vs Invicta's approach

The Frederique Constant Slimline Moonphase Manufacture features a Stainless Steel case at 42mm with Convex Sapphire protection. The Invicta Pro Diver Automatic 23681 offers steel construction at 40mm with Mineral Glass. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Frederique Constant

Automatic FC-705 (In-House) vs Automatic NH35A

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 Pro Diver Automatic 23681 uses the Automatic NH35A (Automatic (Seiko NH35A), standard reserve) at standard. The Slimline Moonphase Manufacture edges ahead on power reserve.

📏

Wearability & Fit

Edge: Invicta

42mm vs 40mm — different wrist presence

At 42mm, the Slimline Moonphase Manufacture has a bolder wrist presence compared to the Pro Diver Automatic 23681 at 40mm. Water resistance differs: 30m (3 ATM) vs 200m.

💰

Value & Cost of Ownership

Edge: Invicta

Invicta sits in the lower tier

The Frederique Constant Slimline Moonphase Manufacture sits at $2,500–$5,000 and the Invicta Pro Diver Automatic 23681 at $50–$100. On the specs that outlast any price: the Slimline Moonphase Manufacture uses Convex Sapphire with 42 Hours, against Mineral Glass and a standard reserve on the Pro Diver Automatic 23681. Service intervals are typically 5-7 years for both.

💧

Water Resistance

Edge: Invicta

30m (3 ATM) vs 200m

The Slimline Moonphase Manufacture is rated to 30m (3 ATM) while the Pro Diver Automatic 23681 handles 200m. The Pro Diver Automatic 23681 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.

Check Price on Amazon

Invicta

Pro Diver Automatic 23681

Choose the Invicta Pro Diver Automatic 23681 if you value Automatic (Seiko NH35A) technology, Invicta (Japanese movement) heritage, and 40mm proportions. At $50–$100, the Automatic NH35A with ample power reserve makes it a compelling choice.

Check Price on Amazon

The Bottom Line

The Frederique Constant Slimline Moonphase Manufacture and Invicta Pro Diver Automatic 23681 represent two distinct approaches to fine watchmaking — the Frederique Constant bringing Swiss Made tradition while Invicta delivers Invicta (Japanese movement) 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 Invicta Pro Diver Automatic 23681 ($50–$100) features Automatic NH35A with 200m water resistance. Choose based on your priorities: Swiss Made craftsmanship vs Invicta (Japanese movement) engineering.
The Invicta Pro Diver Automatic 23681 offers better upfront value, sitting a tier lower at $50–$100. 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 Pro Diver Automatic 23681 at 40mm with 200m is similarly capable. The Slimline Moonphase Manufacture uses Convex Sapphire while the Pro Diver Automatic 23681 uses Mineral Glass. Sapphire resists scratches noticeably better than mineral glass.

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.