Bulova Classic Automatic 98A139 vs Citizen Promaster Sky CB0248
Bulova's timepiece meets Citizen's pilot watch
Quick Verdict
The Bulova Classic Automatic 98A139 ($250–$500) and Citizen Promaster Sky CB0248 ($250–$500) are closely matched timepieces at similar price points. The Classic Automatic 98A139 emphasizes Self-Winding Automatic engineering while the Promaster Sky CB0248 focuses on Citizen (Japan) craftsmanship.
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Specifications Compared
| Feature | Bulova Classic Automatic 98A139 | Citizen Promaster Sky CB0248 |
|---|---|---|
| Price | $250–$500 | $250–$500 |
| Case Size | 45mm | 42.4mm |
| Movement | Automatic, 21 Jewels | Eco-Drive Radio-Controlled |
| Caliber Type | Self-Winding Automatic | Citizen Eco-Drive |
| Power Reserve | — | — |
| Water Resistance | 30m (3 ATM) | — |
| Crystal | Domed Crystal | — |
| Case Material | Black Ion-Plated Stainless Steel | Stainless Steel |
| Origin | Japanese Movement | Citizen (Japan) |
Category-by-Category Analysis
Design & Aesthetics
Bulova's design language vs Citizen's approach
The Bulova Classic Automatic 98A139 features a Black Ion-Plated Stainless Steel case at 45mm with Domed Crystal protection. The Citizen Promaster Sky CB0248 offers Stainless Steel construction at 42.4mm with crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic, 21 Jewels vs Eco-Drive Radio-Controlled
The Classic Automatic 98A139 runs the Automatic, 21 Jewels (Self-Winding Automatic, standard power reserve) at standard frequency. The Promaster Sky CB0248 uses the Eco-Drive Radio-Controlled (Citizen Eco-Drive, standard reserve) at standard. Power reserves are closely matched.
Wearability & Fit
45mm vs 42.4mm — different wrist presence
At 45mm, the Classic Automatic 98A139 has a bolder wrist presence compared to the Promaster Sky CB0248 at 42.4mm. Water resistance differs: 30m (3 ATM) vs 50m.
Value & Cost of Ownership
Same tier — different value propositions
The Bulova Classic Automatic 98A139 sits at $250–$500 and the Citizen Promaster Sky CB0248 at $250–$500. On the specs that outlast any price: the Classic Automatic 98A139 uses Domed Crystal with a standard reserve, against a hardened crystal and a standard reserve on the Promaster Sky CB0248. Service intervals are typically 5-7 years for both.
Water Resistance
30m (3 ATM) vs 50m
The Classic Automatic 98A139 is rated to 30m (3 ATM) while the Promaster Sky CB0248 handles 50m. The Classic Automatic 98A139 is better suited for water activities.
Our Verdict
Bulova
Classic Automatic 98A139
Choose the Bulova Classic Automatic 98A139 if you prioritize Self-Winding Automatic engineering, Japanese Movement craftsmanship, and 30m (3 ATM) water resistance. At $250–$500, it delivers Automatic, 21 Jewels with solid power reserve.
Check Price on AmazonCitizen
Promaster Sky CB0248
Choose the Citizen Promaster Sky CB0248 if you value Citizen Eco-Drive technology, Citizen (Japan) heritage, and 42.4mm proportions. At $250–$500, the Eco-Drive Radio-Controlled with ample power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Bulova Classic Automatic 98A139 and Citizen Promaster Sky CB0248 represent two distinct approaches to fine watchmaking — the Bulova bringing Japanese Movement tradition while Citizen delivers Citizen (Japan) 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.