Casio Vintage A168WA vs Citizen Promaster Sea Eco-Drive Diver
Casio's chronograph meets Citizen's diver
Quick Verdict
The Casio Vintage A168WA (Under $50) offers Casio Quartz (Battery) precision in the tier below the Citizen Promaster Sea Eco-Drive Diver ($250–$500). The Vintage A168WA measures 36.3mm and is rated 30m (3 ATM). The Promaster Sea Eco-Drive Diver counters with Made in Japan craftsmanship and 200m (20 ATM) ISO 6425 water resistance. Both are exceptional watches for their respective tiers.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Casio Vintage A168WA | Citizen Promaster Sea Eco-Drive Diver |
|---|---|---|
| Price | Under $50 | $250–$500 |
| Case Size | 36.3mm | 44mm |
| Movement | Quartz Module 3298 | Eco-Drive Caliber E168 |
| Caliber Type | Casio Quartz (Battery) | Citizen Eco-Drive (Solar Quartz) |
| Power Reserve | — | — |
| Water Resistance | 30m (3 ATM) | 200m (20 ATM) ISO 6425 |
| Crystal | Mineral Glass | Mineral Crystal |
| Case Material | Stainless Steel & Resin | Stainless Steel |
| Origin | Made in Japan | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Citizen's approach
The Casio Vintage A168WA features a Stainless Steel & Resin case at 36.3mm with Mineral Glass protection. The Citizen Promaster Sea Eco-Drive Diver offers Stainless Steel construction at 44mm with Mineral Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Quartz Module 3298 vs Eco-Drive Caliber E168
The Vintage A168WA runs the Quartz Module 3298 (Casio Quartz (Battery), standard power reserve) at standard frequency. The Promaster Sea Eco-Drive Diver uses the Eco-Drive Caliber E168 (Citizen Eco-Drive (Solar Quartz), standard reserve) at standard. Power reserves are closely matched.
Wearability & Fit
36.3mm vs 44mm — different wrist presence
At 36.3mm, the Vintage A168WA wears more compactly on smaller wrists compared to the Promaster Sea Eco-Drive Diver at 44mm. Water resistance differs: 30m (3 ATM) vs 200m (20 ATM) ISO 6425.
Value & Cost of Ownership
Casio sits in the lower tier
The Casio Vintage A168WA sits at Under $50 and the Citizen Promaster Sea Eco-Drive Diver at $250–$500. On the specs that outlast any price: the Vintage A168WA uses Mineral Glass with a standard reserve, against Mineral Crystal and a standard reserve on the Promaster Sea Eco-Drive Diver. Service intervals are typically 5-7 years for both.
Water Resistance
30m (3 ATM) vs 200m (20 ATM) ISO 6425
The Vintage A168WA is rated to 30m (3 ATM) while the Promaster Sea Eco-Drive Diver handles 200m (20 ATM) ISO 6425. The Promaster Sea Eco-Drive Diver offers superior water resistance.
Our Verdict
Casio
Vintage A168WA
Choose the Casio Vintage A168WA if you prioritize Casio Quartz (Battery) engineering, Made in Japan craftsmanship, and 30m (3 ATM) water resistance. At Under $50, it delivers Quartz Module 3298 with solid power reserve.
Check Price on AmazonCitizen
Promaster Sea Eco-Drive Diver
Choose the Citizen Promaster Sea Eco-Drive Diver if you value Citizen Eco-Drive (Solar Quartz) technology, Made in Japan heritage, and 44mm proportions. At $250–$500, the Eco-Drive Caliber E168 with ample power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio Vintage A168WA and Citizen Promaster Sea Eco-Drive Diver represent two distinct approaches to fine watchmaking — the Casio bringing Made in Japan tradition while Citizen delivers Made in Japan engineering.
Frequently Asked Questions
More Comparisons
Tag Heuer Carrera Chronograph vs Casio Vintage A168WA
Two chronographs compared — $2,500–$5,000 vs Under $50
Tag Heuer Carrera Chronograph vs Citizen Promaster Sea Eco-Drive Diver
Tag Heuer's chronograph meets Citizen's diver
Tissot PRX Powermatic 80 vs Casio Vintage A168WA
Tissot's timepiece meets Casio's chronograph
Explore These Watches
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.