Citizen Promaster Sea Eco-Drive Diver vs Tissot Seastar 1000 Automatic
Two divers compared — $250–$500 vs $500–$1,000
Quick Verdict
The Citizen Promaster Sea Eco-Drive Diver ($250–$500) offers Citizen Eco-Drive (Solar Quartz) precision in the tier below the Tissot Seastar 1000 Automatic ($500–$1,000). The Promaster Sea Eco-Drive Diver measures 44mm and is rated 200m (20 ATM) ISO 6425. The Seastar 1000 Automatic counters with Swiss Made craftsmanship and 300m (30 ATM) water resistance. Both are exceptional divers for their respective tiers.
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Specifications Compared
| Feature | Citizen Promaster Sea Eco-Drive Diver | Tissot Seastar 1000 Automatic |
|---|---|---|
| Price | $250–$500 | $500–$1,000 |
| Case Size | 44mm | 40mm |
| Movement | Eco-Drive Caliber E168 | Automatic Powermatic 80 (Caliber 80.111) |
| Caliber Type | Citizen Eco-Drive (Solar Quartz) | ETA/Tissot Automatic |
| Power Reserve | — | 80 Hours |
| Water Resistance | 200m (20 ATM) ISO 6425 | 300m (30 ATM) |
| Crystal | Mineral Crystal | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Made in Japan | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Citizen's design language vs Tissot's approach
The Citizen Promaster Sea Eco-Drive Diver features a Stainless Steel case at 44mm with Mineral Crystal protection. The Tissot Seastar 1000 Automatic offers Stainless Steel construction at 40mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Eco-Drive Caliber E168 vs Automatic Powermatic 80 (Caliber 80.111)
The Promaster Sea Eco-Drive Diver runs the Eco-Drive Caliber E168 (Citizen Eco-Drive (Solar Quartz), standard power reserve) at standard frequency. The Seastar 1000 Automatic uses the Automatic Powermatic 80 (Caliber 80.111) (ETA/Tissot Automatic, 80 Hours reserve) at 21,600 vph (3 Hz). The Seastar 1000 Automatic offers a longer power reserve.
Wearability & Fit
44mm vs 40mm — different wrist presence
At 44mm, the Promaster Sea Eco-Drive Diver has a bolder wrist presence compared to the Seastar 1000 Automatic at 40mm. Water resistance differs: 200m (20 ATM) ISO 6425 vs 300m (30 ATM).
Value & Cost of Ownership
Citizen sits in the lower tier
The Citizen Promaster Sea Eco-Drive Diver sits at $250–$500 and the Tissot Seastar 1000 Automatic at $500–$1,000. On the specs that outlast any price: the Promaster Sea Eco-Drive Diver uses Mineral Crystal with a standard reserve, against Sapphire Crystal and 80 Hours on the Seastar 1000 Automatic. Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) ISO 6425 vs 300m (30 ATM)
The Promaster Sea Eco-Drive Diver is rated to 200m (20 ATM) ISO 6425 while the Seastar 1000 Automatic handles 300m (30 ATM). The Seastar 1000 Automatic offers superior water resistance.
Our Verdict
Citizen
Promaster Sea Eco-Drive Diver
Choose the Citizen Promaster Sea Eco-Drive Diver if you prioritize Citizen Eco-Drive (Solar Quartz) engineering, Made in Japan craftsmanship, and 200m (20 ATM) ISO 6425 water resistance. At $250–$500, it delivers Eco-Drive Caliber E168 with solid power reserve.
Check Price on AmazonTissot
Seastar 1000 Automatic
Choose the Tissot Seastar 1000 Automatic if you value ETA/Tissot Automatic technology, Swiss Made heritage, and 40mm proportions. At $500–$1,000, the Automatic Powermatic 80 (Caliber 80.111) with 80 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Citizen Promaster Sea Eco-Drive Diver and Tissot Seastar 1000 Automatic represent two distinct approaches to the diver category — the Citizen bringing Made in Japan tradition while Tissot 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.