Orient Bambino Open Heart vs Tissot Gentleman Powermatic 80 Silicium
Orient's timepiece meets Tissot'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 Tissot Gentleman Powermatic 80 Silicium ($500–$1,000). The Bambino Open Heart measures 40.5mm and is rated 30m (3 ATM). The Gentleman Powermatic 80 Silicium counters with Swiss Made (Swatch Group) craftsmanship and 100m (10 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Orient Bambino Open Heart | Tissot Gentleman Powermatic 80 Silicium |
|---|---|---|
| Price | $250–$500 | $500–$1,000 |
| Case Size | 40.5mm | 40mm |
| Movement | Automatic Caliber F6T22 | Powermatic 80.811 (Silicon Hairspring) |
| Caliber Type | Orient In-House Automatic, hand-winding and hacking | ETA-Based Automatic with Silicon Hairspring |
| Power Reserve | 40 Hours | 80 Hours |
| Water Resistance | 30m (3 ATM) | 100m (10 ATM) |
| Crystal | Domed Mineral Crystal | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Japanese Movement | Swiss Made (Swatch Group) |
Category-by-Category Analysis
Design & Aesthetics
Orient's design language vs Tissot's approach
The Orient Bambino Open Heart features a Stainless Steel case at 40.5mm with Domed Mineral Crystal 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 Caliber F6T22 vs Powermatic 80.811 (Silicon Hairspring)
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 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
40.5mm vs 40mm — different wrist presence
At 40.5mm, the Bambino Open Heart has a bolder wrist presence compared to the Gentleman Powermatic 80 Silicium at 40mm. Water resistance differs: 30m (3 ATM) vs 100m (10 ATM).
Value & Cost of Ownership
Orient sits in the lower tier
The Orient Bambino Open Heart sits at $250–$500 and the Tissot Gentleman Powermatic 80 Silicium at $500–$1,000. On the specs that outlast any price: the Bambino Open Heart uses Domed Mineral Crystal with 40 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 Bambino Open Heart 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
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 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 Orient Bambino Open Heart and Tissot Gentleman Powermatic 80 Silicium represent two distinct approaches to fine watchmaking — the Orient bringing Japanese Movement tradition while Tissot delivers Swiss Made (Swatch Group) 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.

