Updated
Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial) vs Tissot Gentleman Powermatic 80 Silicium
Girard-Perregaux's timepiece meets Tissot's dress watch
Quick Verdict
The Tissot Gentleman Powermatic 80 Silicium ($500–$1,000) delivers ETA-Based Automatic with Silicon Hairspring technology in the tier below the Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial) ($25,000+). The Gentleman Powermatic 80 Silicium measures 40mm and is rated 100m (10 ATM). The Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial) justifies its premium with Swiss Made heritage and Automatic, Girard-Perregaux calibre GP03300, 28,800 vph, 32 jewels. 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.

Girard-Perregaux
Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial)
$25,000+
Specifications Compared
| Feature | Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial) | Tissot Gentleman Powermatic 80 Silicium |
|---|---|---|
| Price | $25,000+ | $500–$1,000 |
| Case Size | About 36 x 35mm, curved rectangle | 40mm |
| Movement | Automatic, Girard-Perregaux calibre GP03300, 28,800 vph, 32 jewels | Powermatic 80.811 (Silicon Hairspring) |
| Caliber Type | GP03300, in-house | ETA-Based Automatic with Silicon Hairspring |
| Power Reserve | About 46 hours | 80 Hours |
| Water Resistance | 30m (3 ATM) | 100m (10 ATM) |
| Crystal | Sapphire Crystal, curved | Sapphire Crystal |
| Case Material | 18k rose gold | Stainless Steel |
| Origin | Swiss Made | Swiss Made (Swatch Group) |
Category-by-Category Analysis
Design & Aesthetics
Girard-Perregaux's design language vs Tissot's approach
The Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial) features a 18k rose gold case at About 36 x 35mm, curved rectangle with Sapphire Crystal, curved protection. The Tissot Gentleman Powermatic 80 Silicium offers Stainless Steel construction at 40mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic, Girard-Perregaux calibre GP03300, 28,800 vph, 32 jewels vs Powermatic 80.811 (Silicon Hairspring)
The Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial) runs the Automatic, Girard-Perregaux calibre GP03300, 28,800 vph, 32 jewels (GP03300, in-house, About 46 hours power reserve) at standard frequency. The Gentleman Powermatic 80 Silicium uses the Powermatic 80.811 (Silicon Hairspring) (ETA-Based Automatic with Silicon Hairspring, 80 Hours reserve) at 21,600 vph (3 Hz). The Gentleman Powermatic 80 Silicium offers a longer power reserve.
Wearability & Fit
About 36 x 35mm, curved rectangle vs 40mm — different wrist presence
At About 36 x 35mm, curved rectangle, the Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial) wears more compactly on smaller wrists compared to the Gentleman Powermatic 80 Silicium at 40mm. Water resistance differs: 30m (3 ATM) vs 100m (10 ATM).
Value & Cost of Ownership
Tissot sits in the lower tier
The Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial) sits at $25,000+ and the Tissot Gentleman Powermatic 80 Silicium at $500–$1,000. On the specs that outlast any price: the Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial) uses Sapphire Crystal, curved with About 46 hours, against Sapphire Crystal and 80 Hours on the Gentleman Powermatic 80 Silicium. Service intervals are typically 5-7 years for both.
Water Resistance
30m (3 ATM) vs 100m (10 ATM)
The Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial) is rated to 30m (3 ATM) while the Gentleman Powermatic 80 Silicium handles 100m (10 ATM). The Gentleman Powermatic 80 Silicium offers superior water resistance.
Our Verdict
Girard-Perregaux
Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial)
Choose the Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial) if you prioritize GP03300, in-house engineering, Swiss Made craftsmanship, and 30m (3 ATM) water resistance. At $25,000+, it delivers Automatic, Girard-Perregaux calibre GP03300, 28,800 vph, 32 jewels with About 46 hours power reserve.
Check Price on AmazonTissot
Gentleman Powermatic 80 Silicium
Choose the Tissot Gentleman Powermatic 80 Silicium if you value ETA-Based Automatic with Silicon Hairspring technology, Swiss Made (Swatch Group) heritage, and 40mm proportions. At $500–$1,000, the Powermatic 80.811 (Silicon Hairspring) with 80 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial) and Tissot Gentleman Powermatic 80 Silicium represent two distinct approaches to fine watchmaking — the Girard-Perregaux bringing Swiss Made tradition while Tissot delivers Swiss Made (Swatch Group) engineering.
Frequently Asked Questions
More Comparisons
Mido Multifort vs Tissot Gentleman
Two 40mm Swiss automatics, one of them certified
Tag Heuer Carrera Chronograph vs Girard-Perregaux Vintage 1945 XXL Large Date Moon Phases (rose gold, blue skeleton dial)
Tag Heuer's chronograph meets Girard-Perregaux's timepiece
Tag Heuer Carrera Chronograph vs Tissot Gentleman Powermatic 80 Silicium
Tag Heuer's chronograph meets Tissot's dress watch
Explore These Watches
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.
