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Casio MTP-S120L Solar Field vs Bulova Lunar Pilot Chronograph
Casio's field watch meets Bulova's chronograph
Quick Verdict
The Casio MTP-S120L Solar Field ($100–$150) offers Casio Tough Solar Quartz precision in the tier below the Bulova Lunar Pilot Chronograph ($500–$1,000). The MTP-S120L Solar Field measures 42mm (49 x 42 x 10.9mm) and is rated 100m (10 ATM). The Lunar Pilot Chronograph counters with Made in Japan (Citizen Group) craftsmanship and 50m (5 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Casio MTP-S120L Solar Field | Bulova Lunar Pilot Chronograph |
|---|---|---|
| Price | $100–$150 | $500–$1,000 |
| Case Size | 42mm (49 x 42 x 10.9mm) | 45mm |
| Movement | Solar-Powered Quartz | High-Performance 262kHz Quartz |
| Caliber Type | Casio Tough Solar Quartz | High-Performance Quartz |
| Power Reserve | Months on a full solar charge; no battery replacement | N/A (Quartz) |
| Water Resistance | 100m (10 ATM) | 50m (5 ATM) |
| Crystal | Mineral Crystal | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Casio (Japan) | Made in Japan (Citizen Group) |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Bulova's approach
The Casio MTP-S120L Solar Field features a Stainless Steel case at 42mm (49 x 42 x 10.9mm) with Mineral Crystal protection. The Bulova Lunar Pilot Chronograph offers Stainless Steel construction at 45mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Solar-Powered Quartz vs High-Performance 262kHz Quartz
The MTP-S120L Solar Field runs the Solar-Powered Quartz (Casio Tough Solar Quartz, Months on a full solar charge; no battery replacement power reserve) at standard frequency. The Lunar Pilot Chronograph uses the High-Performance 262kHz Quartz (High-Performance Quartz, N/A (Quartz) reserve) at 262,144 Hz (High-Frequency Quartz). Power reserves are closely matched.
Wearability & Fit
42mm (49 x 42 x 10.9mm) vs 45mm — different wrist presence
At 42mm (49 x 42 x 10.9mm), the MTP-S120L Solar Field wears more compactly on smaller wrists compared to the Lunar Pilot Chronograph at 45mm. Water resistance differs: 100m (10 ATM) vs 50m (5 ATM).
Value & Cost of Ownership
Casio sits in the lower tier
The Casio MTP-S120L Solar Field sits at $100–$150 and the Bulova Lunar Pilot Chronograph at $500–$1,000. On the specs that outlast any price: the MTP-S120L Solar Field uses Mineral Crystal with Months on a full solar charge; no battery replacement, against Sapphire Crystal and N/A (Quartz) on the Lunar Pilot Chronograph. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 50m (5 ATM)
The MTP-S120L Solar Field is rated to 100m (10 ATM) while the Lunar Pilot Chronograph handles 50m (5 ATM). The MTP-S120L Solar Field is better suited for water activities.
Our Verdict
Casio
MTP-S120L Solar Field
Choose the Casio MTP-S120L Solar Field if you prioritize Casio Tough Solar Quartz engineering, Casio (Japan) craftsmanship, and 100m (10 ATM) water resistance. At $100–$150, it delivers Solar-Powered Quartz with Months on a full solar charge; no battery replacement power reserve.
Check Price on AmazonBulova
Lunar Pilot Chronograph
Choose the Bulova Lunar Pilot Chronograph if you value High-Performance Quartz technology, Made in Japan (Citizen Group) heritage, and 45mm proportions. At $500–$1,000, the High-Performance 262kHz Quartz with N/A (Quartz) power reserve makes it a compelling choice.
View the dossierThe Bottom Line
The Casio MTP-S120L Solar Field and Bulova Lunar Pilot Chronograph represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Bulova delivers Made in Japan (Citizen Group) 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.

