Seiko Prospex Alpinist vs Tissot Seastar 1000 Automatic
Two divers compared — ~$620 vs ~$515
Quick Verdict
The Tissot Seastar 1000 Automatic (~$515) delivers ETA/Tissot Automatic technology at $105 less than the Seiko Prospex Alpinist (~$620). The Prospex Alpinist justifies its premium with Made in Japan heritage and Automatic Caliber 6R35. Both represent excellent choices in the diver category.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Seiko Prospex Alpinist | Tissot Seastar 1000 Automatic |
|---|---|---|
| Price | ~$620 | ~$515 |
| Case Size | 39.5mm | 40mm |
| Movement | Automatic Caliber 6R35 | Automatic Powermatic 80 (Caliber 80.111) |
| Caliber Type | In-House Automatic Manufacture | ETA/Tissot Automatic |
| Power Reserve | 70 Hours | 80 Hours |
| Water Resistance | 200m (20 ATM) | 300m (30 ATM) |
| Crystal | Sapphire with Cyclops | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Made in Japan | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Seiko's design language vs Tissot's approach
Movement & Performance
Automatic Caliber 6R35 vs Automatic Powermatic 80 (Caliber 80.111)
Wearability & Fit
39.5mm vs 40mm — different wrist presence
Value & Cost of Ownership
Tissot is $105 more affordable
Water Resistance
200m (20 ATM) vs 300m (30 ATM)
Our Verdict
Seiko
Prospex Alpinist
Choose the Seiko Prospex Alpinist if you prioritize In-House Automatic Manufacture engineering, Made in Japan craftsmanship, and 200m (20 ATM) water resistance. At ~$620, it delivers Automatic Caliber 6R35 with 70 Hours 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 ~$515, the Automatic Powermatic 80 (Caliber 80.111) with 80 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Seiko Prospex Alpinist and Tissot Seastar 1000 Automatic represent two distinct approaches to the diver category — the Seiko bringing Made in Japan tradition while Tissot delivers Swiss Made engineering.