Head-to-Head Comparison

Updated

Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) vs Seiko 5 SNKL23

Two timepieces compared — $10,000–$25,000 vs $100–$150

Quick Verdict

The Seiko 5 SNKL23 ($100–$150) delivers Seiko Automatic (no hand-winding, no hacking) technology in the tier below the Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) ($10,000–$25,000). The 5 SNKL23 measures 37mm and is rated 30m (3 ATM). The Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) justifies its premium with Swiss Made heritage and Automatic, Girard-Perregaux calibre GP03300-0105, openworked. Both represent excellent choices in the timepiece category.

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Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap)

Girard-Perregaux

Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap)

$10,000–$25,000

Seiko 5 SNKL23

Seiko

5 SNKL23

$100–$150

Specifications Compared

FeatureGirard-Perregaux Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap)Seiko 5 SNKL23
Price$10,000–$25,000$100–$150
Case SizeAbout 36.1 x 35.25mm, curved rectangle37mm
MovementAutomatic, Girard-Perregaux calibre GP03300-0105, openworkedAutomatic Caliber 7S26
Caliber TypeGP03300, automaticSeiko Automatic (no hand-winding, no hacking)
Power ReserveAbout 46 hours41 Hours
Water Resistance30m (3 ATM)30m (3 ATM)
CrystalSapphire Crystal, curvedHardlex Crystal
Case MaterialStainless steel with black DLC coating, sapphire casebackStainless Steel
OriginSwiss MadeJapanese Movement

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Girard-Perregaux's design language vs Seiko's approach

The Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) features a Stainless steel with black DLC coating, sapphire caseback case at About 36.1 x 35.25mm, curved rectangle with Sapphire Crystal, curved protection. The Seiko 5 SNKL23 offers Stainless Steel construction at 37mm with Hardlex Crystal. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Girard-Perregaux

Automatic, Girard-Perregaux calibre GP03300-0105, openworked vs Automatic Caliber 7S26

The Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) runs the Automatic, Girard-Perregaux calibre GP03300-0105, openworked (GP03300, automatic, About 46 hours power reserve) at standard frequency. The 5 SNKL23 uses the Automatic Caliber 7S26 (Seiko Automatic (no hand-winding, no hacking), 41 Hours reserve) at 21,600 vph (3 Hz). The Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) edges ahead on power reserve.

📏

Wearability & Fit

Edge: Girard-Perregaux

About 36.1 x 35.25mm, curved rectangle vs 37mm — different wrist presence

At About 36.1 x 35.25mm, curved rectangle, the Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) wears more compactly on smaller wrists compared to the 5 SNKL23 at 37mm. Water resistance differs: 30m (3 ATM) vs 30m (3 ATM).

💰

Value & Cost of Ownership

Edge: Seiko

Seiko sits in the lower tier

The Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) sits at $10,000–$25,000 and the Seiko 5 SNKL23 at $100–$150. On the specs that outlast any price: the Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) uses Sapphire Crystal, curved with About 46 hours, against Hardlex Crystal and 41 Hours on the 5 SNKL23. Service intervals are typically 5-7 years for both.

💧

Water Resistance

Edge: Draw

30m (3 ATM) vs 30m (3 ATM)

The Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) is rated to 30m (3 ATM) while the 5 SNKL23 handles 30m (3 ATM). Both offer identical water resistance ratings.

Our Verdict

Girard-Perregaux

Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap)

Choose the Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) if you prioritize GP03300, automatic engineering, Swiss Made craftsmanship, and 30m (3 ATM) water resistance. At $10,000–$25,000, it delivers Automatic, Girard-Perregaux calibre GP03300-0105, openworked with About 46 hours power reserve.

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Seiko

5 SNKL23

Choose the Seiko 5 SNKL23 if you value Seiko Automatic (no hand-winding, no hacking) technology, Japanese Movement heritage, and 37mm proportions. At $100–$150, the Automatic Caliber 7S26 with 41 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) and Seiko 5 SNKL23 represent two distinct approaches to the timepiece category — the Girard-Perregaux bringing Swiss Made tradition while Seiko delivers Japanese Movement engineering.

Frequently Asked Questions

On price, the Seiko 5 SNKL23 sits a band lower ($100–$150 against $10,000–$25,000), so it is the cheaper way into the category. Neither is better at everything; the spec table above shows movement, case size, water resistance and crystal side by side so you can weigh what matters to you. We do not test units, so this is the makers' data, not a bench result.
The Seiko 5 SNKL23 offers better upfront value, sitting a tier lower at $100–$150. However, the Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) may justify its premium with superior finishing, heritage, or resale value.
Both are suitable for daily wear. The Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) at About 36.1 x 35.25mm, curved rectangle with 30m (3 ATM) water resistance handles everyday situations. The 5 SNKL23 at 37mm with 30m (3 ATM) is similarly capable. The Vintage 1945 XXL Large Date Moon Phases skeleton 25882-21-223-BF6A (black DLC steel, smoked openworked dial, alligator strap) uses Sapphire Crystal, curved while the 5 SNKL23 uses Hardlex 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.