Updated
Casio MTP-S120L Solar Field vs Citizen Eco-Drive Weekender Garrison
Two field watchs compared — $100–$150 vs $100–$150
Quick Verdict
The Casio MTP-S120L Solar Field ($100–$150) and Citizen Eco-Drive Weekender Garrison ($100–$150) are closely matched field watchs at similar price points. The MTP-S120L Solar Field emphasizes Casio Tough Solar Quartz engineering while the Eco-Drive Weekender Garrison focuses on Citizen (Japan) craftsmanship.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Casio MTP-S120L Solar Field | Citizen Eco-Drive Weekender Garrison |
|---|---|---|
| Price | $100–$150 | $100–$150 |
| Case Size | 42mm (49 x 42 x 10.9mm) | 37mm |
| Movement | Solar-Powered Quartz | Eco-Drive Caliber E101 |
| Caliber Type | Casio Tough Solar Quartz | Eco-Drive Solar Quartz (No Battery Change) |
| Power Reserve | Months on a full solar charge; no battery replacement | 6 Months (Solar, Full Charge) |
| Water Resistance | 100m (10 ATM) | 100m (10 ATM) |
| Crystal | Mineral Crystal | Mineral Glass |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Casio (Japan) | Citizen (Japan) |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Citizen'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 Citizen Eco-Drive Weekender Garrison offers Stainless Steel construction at 37mm with Mineral Glass. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Solar-Powered Quartz vs Eco-Drive Caliber E101
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 Eco-Drive Weekender Garrison uses the Eco-Drive Caliber E101 (Eco-Drive Solar Quartz (No Battery Change), 6 Months (Solar, Full Charge) reserve) at standard. The Eco-Drive Weekender Garrison offers a longer power reserve.
Wearability & Fit
42mm (49 x 42 x 10.9mm) vs 37mm — different wrist presence
At 42mm (49 x 42 x 10.9mm), the MTP-S120L Solar Field has a bolder wrist presence compared to the Eco-Drive Weekender Garrison at 37mm. Water resistance differs: 100m (10 ATM) vs 100m (10 ATM).
Value & Cost of Ownership
Same tier — different value propositions
The Casio MTP-S120L Solar Field sits at $100–$150 and the Citizen Eco-Drive Weekender Garrison at $100–$150. 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 Mineral Glass and 6 Months (Solar, Full Charge) on the Eco-Drive Weekender Garrison. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 100m (10 ATM)
The MTP-S120L Solar Field is rated to 100m (10 ATM) while the Eco-Drive Weekender Garrison handles 100m (10 ATM). Both offer identical water resistance ratings.
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 AmazonCitizen
Eco-Drive Weekender Garrison
Choose the Citizen Eco-Drive Weekender Garrison if you value Eco-Drive Solar Quartz (No Battery Change) technology, Citizen (Japan) heritage, and 37mm proportions. At $100–$150, the Eco-Drive Caliber E101 with 6 Months (Solar, Full Charge) power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio MTP-S120L Solar Field and Citizen Eco-Drive Weekender Garrison represent two distinct approaches to the field watch category — the Casio bringing Casio (Japan) tradition while Citizen delivers Citizen (Japan) engineering.
Frequently Asked Questions
More Comparisons
Tag Heuer Carrera Chronograph vs Casio MTP-S120L Solar Field
Tag Heuer's chronograph meets Casio's field watch
Tag Heuer Carrera Chronograph vs Citizen Eco-Drive Weekender Garrison
Tag Heuer's chronograph meets Citizen's field watch
Tissot PRX Powermatic 80 vs Casio MTP-S120L Solar Field
Tissot's timepiece meets Casio's field watch
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.