Bulova Lunar Pilot Chronograph vs Seiko Prospex Samurai SRPF03
Bulova's chronograph meets Seiko's diver
Quick Verdict
The Seiko Prospex Samurai SRPF03 ($250–$500) delivers Seiko Automatic, hand-winding and hacking technology in the tier below the Bulova Lunar Pilot Chronograph ($500–$1,000). The Prospex Samurai SRPF03 measures 43.8mm and is rated 200m (20 ATM). The Lunar Pilot Chronograph justifies its premium with Made in Japan (Citizen Group) heritage and High-Performance 262kHz Quartz. Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Bulova Lunar Pilot Chronograph | Seiko Prospex Samurai SRPF03 |
|---|---|---|
| Price | $500–$1,000 | $250–$500 |
| Case Size | 45mm | 43.8mm |
| Movement | High-Performance 262kHz Quartz | Automatic Caliber 4R35 |
| Caliber Type | High-Performance Quartz | Seiko Automatic, hand-winding and hacking |
| Power Reserve | N/A (Quartz) | 41 Hours |
| Water Resistance | 50m (5 ATM) | 200m (20 ATM) |
| Crystal | Sapphire Crystal | Hardlex Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Made in Japan (Citizen Group) | Japanese Movement |
Category-by-Category Analysis
Design & Aesthetics
Bulova's design language vs Seiko's approach
The Bulova Lunar Pilot Chronograph features a Stainless Steel case at 45mm with Sapphire Crystal protection. The Seiko Prospex Samurai SRPF03 offers Stainless Steel construction at 43.8mm with Hardlex Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
High-Performance 262kHz Quartz vs Automatic Caliber 4R35
The Lunar Pilot Chronograph runs the High-Performance 262kHz Quartz (High-Performance Quartz, N/A (Quartz) power reserve) at 262,144 Hz (High-Frequency Quartz) frequency. The Prospex Samurai SRPF03 uses the Automatic Caliber 4R35 (Seiko Automatic, hand-winding and hacking, 41 Hours reserve) at 21,600 vph (3 Hz). The Prospex Samurai SRPF03 offers a longer power reserve.
Wearability & Fit
45mm vs 43.8mm — different wrist presence
At 45mm, the Lunar Pilot Chronograph has a bolder wrist presence compared to the Prospex Samurai SRPF03 at 43.8mm. Water resistance differs: 50m (5 ATM) vs 200m (20 ATM).
Value & Cost of Ownership
Seiko sits in the lower tier
The Bulova Lunar Pilot Chronograph sits at $500–$1,000 and the Seiko Prospex Samurai SRPF03 at $250–$500. On the specs that outlast any price: the Lunar Pilot Chronograph uses Sapphire Crystal with N/A (Quartz), against Hardlex Crystal and 41 Hours on the Prospex Samurai SRPF03. Service intervals are typically 5-7 years for both.
Water Resistance
50m (5 ATM) vs 200m (20 ATM)
The Lunar Pilot Chronograph is rated to 50m (5 ATM) while the Prospex Samurai SRPF03 handles 200m (20 ATM). The Prospex Samurai SRPF03 offers superior water resistance.
Our Verdict
Bulova
Lunar Pilot Chronograph
Choose the Bulova Lunar Pilot Chronograph if you prioritize High-Performance Quartz engineering, Made in Japan (Citizen Group) craftsmanship, and 50m (5 ATM) water resistance. At $500–$1,000, it delivers High-Performance 262kHz Quartz with N/A (Quartz) power reserve.
Check Price on AmazonSeiko
Prospex Samurai SRPF03
Choose the Seiko Prospex Samurai SRPF03 if you value Seiko Automatic, hand-winding and hacking technology, Japanese Movement heritage, and 43.8mm proportions. At $250–$500, the Automatic Caliber 4R35 with 41 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Bulova Lunar Pilot Chronograph and Seiko Prospex Samurai SRPF03 represent two distinct approaches to fine watchmaking — the Bulova bringing Made in Japan (Citizen Group) tradition while Seiko delivers Japanese Movement 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.