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Tissot Seastar 1000 Automatic vs Tudor Black Bay 41mm M7941A1A0RU-0001 (steel, burgundy bezel, black dial, steel bracelet, METAS Master Chronometer)
Tissot's diver meets Tudor's chronograph
Quick Verdict
The Tissot Seastar 1000 Automatic ($500–$1,000) offers ETA/Tissot Automatic precision in the tier below the Tudor Black Bay 41mm M7941A1A0RU-0001 (steel, burgundy bezel, black dial, steel bracelet, METAS Master Chronometer) ($2,500–$5,000). The Seastar 1000 Automatic measures 40mm and is rated 300m (30 ATM). The Black Bay 41mm M7941A1A0RU-0001 (steel, burgundy bezel, black dial, steel bracelet, METAS Master Chronometer) counters with Swiss Made craftsmanship and 200m (20 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Tudor
Black Bay 41mm M7941A1A0RU-0001 (steel, burgundy bezel, black dial, steel bracelet, METAS Master Chronometer)
$2,500–$5,000
Specifications Compared
| Feature | Tissot Seastar 1000 Automatic | Tudor Black Bay 41mm M7941A1A0RU-0001 (steel, burgundy bezel, black dial, steel bracelet, METAS Master Chronometer) |
|---|---|---|
| Price | $500–$1,000 | $2,500–$5,000 |
| Case Size | 40mm | 41mm, 13.6mm thick, 21mm lugs |
| Movement | Automatic Powermatic 80 (Caliber 80.111) | Tudor manufacture calibre MT5602-U, automatic, COSC chronometer and METAS Master Chronometer, bidirectional rotor |
| Caliber Type | ETA/Tissot Automatic | Tudor manufacture MT5602-U, COSC + METAS |
| Power Reserve | 80 Hours | About 70 hours |
| Water Resistance | 300m (30 ATM) | 200m (20 ATM) |
| Crystal | Sapphire Crystal | Domed sapphire |
| Case Material | Stainless Steel | Stainless steel, polished and satin; 60-minute unidirectional steel bezel with burgundy anodised aluminium insert; screw-down crown |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Tissot's design language vs Tudor's approach
The Tissot Seastar 1000 Automatic features a Stainless Steel case at 40mm with Sapphire Crystal protection. The Tudor Black Bay 41mm M7941A1A0RU-0001 (steel, burgundy bezel, black dial, steel bracelet, METAS Master Chronometer) offers Stainless steel, polished and satin; 60-minute unidirectional steel bezel with burgundy anodised aluminium insert; screw-down crown construction at 41mm, 13.6mm thick, 21mm lugs with Domed sapphire. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Powermatic 80 (Caliber 80.111) vs Tudor manufacture calibre MT5602-U, automatic, COSC chronometer and METAS Master Chronometer, bidirectional rotor
The Seastar 1000 Automatic runs the Automatic Powermatic 80 (Caliber 80.111) (ETA/Tissot Automatic, 80 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Black Bay 41mm M7941A1A0RU-0001 (steel, burgundy bezel, black dial, steel bracelet, METAS Master Chronometer) uses the Tudor manufacture calibre MT5602-U, automatic, COSC chronometer and METAS Master Chronometer, bidirectional rotor (Tudor manufacture MT5602-U, COSC + METAS, About 70 hours reserve) at standard. The Seastar 1000 Automatic edges ahead on power reserve.
Wearability & Fit
40mm vs 41mm, 13.6mm thick, 21mm lugs — different wrist presence
At 40mm, the Seastar 1000 Automatic wears more compactly on smaller wrists compared to the Black Bay 41mm M7941A1A0RU-0001 (steel, burgundy bezel, black dial, steel bracelet, METAS Master Chronometer) at 41mm, 13.6mm thick, 21mm lugs. Water resistance differs: 300m (30 ATM) vs 200m (20 ATM).
Value & Cost of Ownership
Tissot sits in the lower tier
The Tissot Seastar 1000 Automatic sits at $500–$1,000 and the Tudor Black Bay 41mm M7941A1A0RU-0001 (steel, burgundy bezel, black dial, steel bracelet, METAS Master Chronometer) at $2,500–$5,000. On the specs that outlast any price: the Seastar 1000 Automatic uses Sapphire Crystal with 80 Hours, against Domed sapphire and About 70 hours on the Black Bay 41mm M7941A1A0RU-0001 (steel, burgundy bezel, black dial, steel bracelet, METAS Master Chronometer). Service intervals are typically 5-7 years for both.
Water Resistance
300m (30 ATM) vs 200m (20 ATM)
The Seastar 1000 Automatic is rated to 300m (30 ATM) while the Black Bay 41mm M7941A1A0RU-0001 (steel, burgundy bezel, black dial, steel bracelet, METAS Master Chronometer) handles 200m (20 ATM). The Seastar 1000 Automatic is better suited for water activities.
Our Verdict
Tissot
Seastar 1000 Automatic
Choose the Tissot Seastar 1000 Automatic if you prioritize ETA/Tissot Automatic engineering, Swiss Made craftsmanship, and 300m (30 ATM) water resistance. At $500–$1,000, it delivers Automatic Powermatic 80 (Caliber 80.111) with 80 Hours power reserve.
View the dossierTudor
Black Bay 41mm M7941A1A0RU-0001 (steel, burgundy bezel, black dial, steel bracelet, METAS Master Chronometer)
Choose the Tudor Black Bay 41mm M7941A1A0RU-0001 (steel, burgundy bezel, black dial, steel bracelet, METAS Master Chronometer) if you value Tudor manufacture MT5602-U, COSC + METAS technology, Swiss Made heritage, and 41mm, 13.6mm thick, 21mm lugs proportions. At $2,500–$5,000, the Tudor manufacture calibre MT5602-U, automatic, COSC chronometer and METAS Master Chronometer, bidirectional rotor with About 70 hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Tissot Seastar 1000 Automatic and Tudor Black Bay 41mm M7941A1A0RU-0001 (steel, burgundy bezel, black dial, steel bracelet, METAS Master Chronometer) represent two distinct approaches to fine watchmaking — the Tissot bringing Swiss Made tradition while Tudor delivers Swiss Made engineering.
Frequently Asked Questions
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How This Page Was Made
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