Orient Bambino Open Heart vs Patek Philippe Calatrava 6119R
Orient's timepiece meets Patek Philippe's dress watch
Quick Verdict
The Orient Bambino Open Heart ($250–$500) offers Orient In-House Automatic, hand-winding and hacking precision in the tier below the Patek Philippe Calatrava 6119R ($25,000+). The Bambino Open Heart measures 40.5mm and is rated 30m (3 ATM). The Calatrava 6119R counters with Swiss Made craftsmanship and 30m (3 ATM) water resistance. Both are exceptional watches for their respective tiers.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Orient Bambino Open Heart | Patek Philippe Calatrava 6119R |
|---|---|---|
| Price | $250–$500 | $25,000+ |
| Case Size | 40.5mm | 39mm |
| Movement | Automatic Caliber F6T22 | Manual-Wind Caliber 30-255 PS |
| Caliber Type | Orient In-House Automatic, hand-winding and hacking | Patek Philippe In-House Manual-Wind |
| Power Reserve | 40 Hours | 65 Hours |
| Water Resistance | 30m (3 ATM) | 30m (3 ATM) |
| Crystal | Domed Mineral Crystal | Sapphire Crystal |
| Case Material | Stainless Steel | 18k Rose Gold |
| Origin | Japanese Movement | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Orient's design language vs Patek Philippe's approach
The Orient Bambino Open Heart features a Stainless Steel case at 40.5mm with Domed Mineral Crystal protection. The Patek Philippe Calatrava 6119R offers 18k Rose Gold construction at 39mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Caliber F6T22 vs Manual-Wind Caliber 30-255 PS
The Bambino Open Heart runs the Automatic Caliber F6T22 (Orient In-House Automatic, hand-winding and hacking, 40 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Calatrava 6119R uses the Manual-Wind Caliber 30-255 PS (Patek Philippe In-House Manual-Wind, 65 Hours reserve) at 28,800 vph (4 Hz). The Calatrava 6119R offers a longer power reserve.
Wearability & Fit
40.5mm vs 39mm — different wrist presence
At 40.5mm, the Bambino Open Heart has a bolder wrist presence compared to the Calatrava 6119R at 39mm. Water resistance differs: 30m (3 ATM) vs 30m (3 ATM).
Value & Cost of Ownership
Orient sits in the lower tier
The Orient Bambino Open Heart sits at $250–$500 and the Patek Philippe Calatrava 6119R at $25,000+. On the specs that outlast any price: the Bambino Open Heart uses Domed Mineral Crystal with 40 Hours, against Sapphire Crystal and 65 Hours on the Calatrava 6119R. Service intervals are typically 5-7 years for both.
Water Resistance
30m (3 ATM) vs 30m (3 ATM)
The Bambino Open Heart is rated to 30m (3 ATM) while the Calatrava 6119R handles 30m (3 ATM). Both offer identical water resistance ratings.
Our Verdict
Orient
Bambino Open Heart
Choose the Orient Bambino Open Heart if you prioritize Orient In-House Automatic, hand-winding and hacking engineering, Japanese Movement craftsmanship, and 30m (3 ATM) water resistance. At $250–$500, it delivers Automatic Caliber F6T22 with 40 Hours power reserve.
Check Price on AmazonPatek Philippe
Calatrava 6119R
Choose the Patek Philippe Calatrava 6119R if you value Patek Philippe In-House Manual-Wind technology, Swiss Made heritage, and 39mm proportions. At $25,000+, the Manual-Wind Caliber 30-255 PS with 65 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Orient Bambino Open Heart and Patek Philippe Calatrava 6119R represent two distinct approaches to fine watchmaking — the Orient bringing Japanese Movement tradition while Patek Philippe delivers Swiss Made engineering.
Frequently Asked Questions
More Comparisons
Tag Heuer Carrera Chronograph vs Orient Bambino Open Heart
Tag Heuer's chronograph meets Orient's timepiece
Tag Heuer Carrera Chronograph vs Patek Philippe Calatrava 6119R
Tag Heuer's chronograph meets Patek Philippe's dress watch
Tissot PRX Powermatic 80 vs Orient Bambino Open Heart
Two timepieces compared — $500–$1,000 vs $250–$500
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.