Seiko Prospex Samurai SRPF03 vs Timex Expedition Metal Field "Scout"
Seiko's diver meets Timex's field watch
Quick Verdict
The Timex Expedition Metal Field "Scout" ($50–$100) delivers Quartz (Battery) technology in the tier below the Seiko Prospex Samurai SRPF03 ($250–$500). The Expedition Metal Field "Scout" measures 40mm and is rated 50m (5 ATM). The Prospex Samurai SRPF03 justifies its premium with Japanese Movement heritage and Automatic Caliber 4R35. Both represent excellent choices in the luxury watch 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 Samurai SRPF03 | Timex Expedition Metal Field "Scout" |
|---|---|---|
| Price | $250–$500 | $50–$100 |
| Case Size | 43.8mm | 40mm |
| Movement | Automatic Caliber 4R35 | Quartz (3-Hand, Date) |
| Caliber Type | Seiko Automatic, hand-winding and hacking | Quartz (Battery) |
| Power Reserve | 41 Hours | Battery |
| Water Resistance | 200m (20 ATM) | 50m (5 ATM) |
| Crystal | Hardlex Crystal | Mineral Glass |
| Case Material | Stainless Steel | Brass (Gunmetal Finish) |
| Origin | Japanese Movement | Timex (USA Design) |
Category-by-Category Analysis
Design & Aesthetics
Seiko's design language vs Timex's approach
The Seiko Prospex Samurai SRPF03 features a Stainless Steel case at 43.8mm with Hardlex Crystal protection. The Timex Expedition Metal Field "Scout" offers Brass (Gunmetal Finish) construction at 40mm with Mineral Glass. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Caliber 4R35 vs Quartz (3-Hand, Date)
The Prospex Samurai SRPF03 runs the Automatic Caliber 4R35 (Seiko Automatic, hand-winding and hacking, 41 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Expedition Metal Field "Scout" uses the Quartz (3-Hand, Date) (Quartz (Battery), Battery reserve) at standard. The Prospex Samurai SRPF03 edges ahead on power reserve.
Wearability & Fit
43.8mm vs 40mm — different wrist presence
At 43.8mm, the Prospex Samurai SRPF03 has a bolder wrist presence compared to the Expedition Metal Field "Scout" at 40mm. Water resistance differs: 200m (20 ATM) vs 50m (5 ATM).
Value & Cost of Ownership
Timex sits in the lower tier
The Seiko Prospex Samurai SRPF03 sits at $250–$500 and the Timex Expedition Metal Field "Scout" at $50–$100. On the specs that outlast any price: the Prospex Samurai SRPF03 uses Hardlex Crystal with 41 Hours, against Mineral Glass and Battery on the Expedition Metal Field "Scout". Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) vs 50m (5 ATM)
The Prospex Samurai SRPF03 is rated to 200m (20 ATM) while the Expedition Metal Field "Scout" handles 50m (5 ATM). The Prospex Samurai SRPF03 is better suited for water activities.
Our Verdict
Seiko
Prospex Samurai SRPF03
Choose the Seiko Prospex Samurai SRPF03 if you prioritize Seiko Automatic, hand-winding and hacking engineering, Japanese Movement craftsmanship, and 200m (20 ATM) water resistance. At $250–$500, it delivers Automatic Caliber 4R35 with 41 Hours power reserve.
Check Price on AmazonTimex
Expedition Metal Field "Scout"
Choose the Timex Expedition Metal Field "Scout" if you value Quartz (Battery) technology, Timex (USA Design) heritage, and 40mm proportions. At $50–$100, the Quartz (3-Hand, Date) with Battery power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Seiko Prospex Samurai SRPF03 and Timex Expedition Metal Field "Scout" represent two distinct approaches to fine watchmaking — the Seiko bringing Japanese Movement tradition while Timex delivers Timex (USA Design) engineering.
Frequently Asked Questions
More Comparisons
Tag Heuer Carrera Chronograph vs Seiko Prospex Samurai SRPF03
Tag Heuer's chronograph meets Seiko's diver
Tag Heuer Carrera Chronograph vs Timex Expedition Metal Field "Scout"
Tag Heuer's chronograph meets Timex's field watch
Tissot PRX Powermatic 80 vs Seiko Prospex Samurai SRPF03
Tissot's timepiece meets Seiko's diver
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.

