Head-to-Head Comparison

Frederique Constant Classic Quartz Moonphase vs Casio G-Shock GA-B2100 CasiOak

Frederique Constant's dress watch meets Casio's diver

Quick Verdict

The Casio G-Shock GA-B2100 CasiOak (~$144) delivers Casio Quartz (Solar-Powered) technology at $1,151 less than the Frederique Constant Classic Quartz Moonphase (~$1,295). The Classic Quartz Moonphase justifies its premium with Swiss Made heritage and Quartz FC-206. Both represent excellent choices in the luxury watch category.

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Frederique Constant Classic Quartz Moonphase

Frederique Constant

Classic Quartz Moonphase

~$1,295

Casio G-Shock GA-B2100 CasiOak

Casio

G-Shock GA-B2100 CasiOak

~$144

Specifications Compared

FeatureFrederique Constant Classic Quartz MoonphaseCasio G-Shock GA-B2100 CasiOak
Price~$1,295~$144
Case Size40mm44.4mm
MovementQuartz FC-206Quartz Module 5611 (Tough Solar + Bluetooth)
Caliber TypeSwiss QuartzCasio Quartz (Solar-Powered)
Power ReserveBattery
Water Resistance50m (5 ATM)200m (20 ATM)
CrystalAnti-Reflective Sapphire CrystalMineral Glass
Case MaterialGold-Tone Stainless SteelCarbon Core Guard Resin
OriginSwiss MadeMade in Japan

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Frederique Constant's design language vs Casio's approach

⚙️

Movement & Performance

Edge: Draw

Quartz FC-206 vs Quartz Module 5611 (Tough Solar + Bluetooth)

📏

Wearability & Fit

Edge: Frederique Constant

40mm vs 44.4mm — different wrist presence

💰

Value & Cost of Ownership

Edge: Casio

Casio is $1,151 more affordable

💧

Water Resistance

Edge: Casio

50m (5 ATM) vs 200m (20 ATM)

Our Verdict

Frederique Constant

Classic Quartz Moonphase

Choose the Frederique Constant Classic Quartz Moonphase if you prioritize Swiss Quartz engineering, Swiss Made craftsmanship, and 50m (5 ATM) water resistance. At ~$1,295, it delivers Quartz FC-206 with Battery power reserve.

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Casio

G-Shock GA-B2100 CasiOak

Choose the Casio G-Shock GA-B2100 CasiOak if you value Casio Quartz (Solar-Powered) technology, Made in Japan heritage, and 44.4mm proportions. At ~$144, the Quartz Module 5611 (Tough Solar + Bluetooth) with ample power reserve makes it a compelling choice.

Check Price on Amazon

The Bottom Line

The Frederique Constant Classic Quartz Moonphase and Casio G-Shock GA-B2100 CasiOak represent two distinct approaches to fine watchmaking — the Frederique Constant bringing Swiss Made tradition while Casio delivers Made in Japan engineering.

Frequently Asked Questions