Casio F-91W vs Tissot Seastar 1000 Automatic
Casio's timepiece meets Tissot's diver
Quick Verdict
The Casio F-91W (~$20) offers Casio Digital Quartz (Battery) precision at $495 less than the Tissot Seastar 1000 Automatic (~$515). The Seastar 1000 Automatic counters with Swiss Made craftsmanship and 300m (30 ATM) water resistance. Both are exceptional watches for their respective price points.
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Specifications Compared
| Feature | Casio F-91W | Tissot Seastar 1000 Automatic |
|---|---|---|
| Price | ~$20 | ~$515 |
| Case Size | 35mm | 40mm |
| Movement | Quartz Module 593 | Automatic Powermatic 80 (Caliber 80.111) |
| Caliber Type | Casio Digital Quartz (Battery) | ETA/Tissot Automatic |
| Power Reserve | 7-Year Battery | 80 Hours |
| Water Resistance | 30m (Splash Resistant) | 300m (30 ATM) |
| Crystal | Acrylic | Sapphire Crystal |
| Case Material | Resin | Stainless Steel |
| Origin | Casio (Japan) | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Tissot's approach
Movement & Performance
Quartz Module 593 vs Automatic Powermatic 80 (Caliber 80.111)
Wearability & Fit
35mm vs 40mm — different wrist presence
Value & Cost of Ownership
Casio is $495 more affordable
Water Resistance
30m (Splash Resistant) vs 300m (30 ATM)
Our Verdict
Casio
F-91W
Choose the Casio F-91W if you prioritize Casio Digital Quartz (Battery) engineering, Casio (Japan) craftsmanship, and 30m (Splash Resistant) water resistance. At ~$20, it delivers Quartz Module 593 with 7-Year Battery 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 Casio F-91W and Tissot Seastar 1000 Automatic represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Tissot delivers Swiss Made engineering.