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Orient Sun & Moon vs Ulysse Nardin Marine Chronometer Manufacture 43mm (18k rose gold)
Orient's dress watch meets Ulysse Nardin's chronograph
Quick Verdict
The Orient Sun & Moon ($250–$500) offers Orient In-House Automatic (Hacking, Hand-Winding) precision in the tier below the Ulysse Nardin Marine Chronometer Manufacture 43mm (18k rose gold) ($25,000+). The Sun & Moon measures 41.5mm and is rated 50m (5 ATM). The Marine Chronometer Manufacture 43mm (18k rose gold) counters with Swiss Made craftsmanship and 200m (20 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Orient Sun & Moon | Ulysse Nardin Marine Chronometer Manufacture 43mm (18k rose gold) |
|---|---|---|
| Price | $250–$500 | $25,000+ |
| Case Size | 41.5mm | 43mm |
| Movement | Automatic Caliber F6B24 | Automatic, Ulysse Nardin UN-118 (in-house) |
| Caliber Type | Orient In-House Automatic (Hacking, Hand-Winding) | UN-118, DIAMonSIL escapement, silicon balance spring, COSC-certified |
| Power Reserve | 40 Hours | About 60 hours, indicator at 12 |
| Water Resistance | 50m (5 ATM) | 200m (20 ATM) |
| Crystal | Mineral Glass | Sapphire Crystal, sapphire caseback |
| Case Material | Stainless Steel | 18k rose gold, fluted bezel |
| Origin | Made in Japan | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Orient's design language vs Ulysse Nardin's approach
The Orient Sun & Moon features a Stainless Steel case at 41.5mm with Mineral Glass protection. The Ulysse Nardin Marine Chronometer Manufacture 43mm (18k rose gold) offers 18k rose gold, fluted bezel construction at 43mm with Sapphire Crystal, sapphire caseback. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Caliber F6B24 vs Automatic, Ulysse Nardin UN-118 (in-house)
The Sun & Moon runs the Automatic Caliber F6B24 (Orient In-House Automatic (Hacking, Hand-Winding), 40 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Marine Chronometer Manufacture 43mm (18k rose gold) uses the Automatic, Ulysse Nardin UN-118 (in-house) (UN-118, DIAMonSIL escapement, silicon balance spring, COSC-certified, About 60 hours, indicator at 12 reserve) at standard. The Marine Chronometer Manufacture 43mm (18k rose gold) offers a longer power reserve.
Wearability & Fit
41.5mm vs 43mm — different wrist presence
At 41.5mm, the Sun & Moon wears more compactly on smaller wrists compared to the Marine Chronometer Manufacture 43mm (18k rose gold) at 43mm. Water resistance differs: 50m (5 ATM) vs 200m (20 ATM).
Value & Cost of Ownership
Orient sits in the lower tier
The Orient Sun & Moon sits at $250–$500 and the Ulysse Nardin Marine Chronometer Manufacture 43mm (18k rose gold) at $25,000+. On the specs that outlast any price: the Sun & Moon uses Mineral Glass with 40 Hours, against Sapphire Crystal, sapphire caseback and About 60 hours, indicator at 12 on the Marine Chronometer Manufacture 43mm (18k rose gold). Service intervals are typically 5-7 years for both.
Water Resistance
50m (5 ATM) vs 200m (20 ATM)
The Sun & Moon is rated to 50m (5 ATM) while the Marine Chronometer Manufacture 43mm (18k rose gold) handles 200m (20 ATM). The Marine Chronometer Manufacture 43mm (18k rose gold) offers superior water resistance.
Our Verdict
Orient
Sun & Moon
Choose the Orient Sun & Moon if you prioritize Orient In-House Automatic (Hacking, Hand-Winding) engineering, Made in Japan craftsmanship, and 50m (5 ATM) water resistance. At $250–$500, it delivers Automatic Caliber F6B24 with 40 Hours power reserve.
View the dossierUlysse Nardin
Marine Chronometer Manufacture 43mm (18k rose gold)
Choose the Ulysse Nardin Marine Chronometer Manufacture 43mm (18k rose gold) if you value UN-118, DIAMonSIL escapement, silicon balance spring, COSC-certified technology, Swiss Made heritage, and 43mm proportions. At $25,000+, the Automatic, Ulysse Nardin UN-118 (in-house) with About 60 hours, indicator at 12 power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Orient Sun & Moon and Ulysse Nardin Marine Chronometer Manufacture 43mm (18k rose gold) represent two distinct approaches to fine watchmaking — the Orient bringing Made in Japan tradition while Ulysse Nardin delivers Swiss Made engineering.
Frequently Asked Questions
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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.