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Casio

GDF-100-1B

Also sold as GDF-100-1BDR GDF-100-1BJFJapan

Availability unknown All GDF references →
Case diameter
55mm
Water resistance
200 m
Crystal
Mineral crystal

Casio GDF-100-1B: 55 mm case, 200 m water resistance.

Where to buy

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Specifications

Specifications from Creation Watches, last seen 2026-09-21.

Case & crystal

Case material
Resin
Case diameter
55mm
Case thickness
17.2mm
Crystal
Mineral crystal

Resistance

Water resistance
200 m

Catalogue

Family
GDF
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Variants Same watch, different market or bracelet

Reference Edition Region Band Clasp Weight
GDF-100-1BDR DR — Resin Pin buckle —
GDF-100-1BJF JF Japan Resin Pin buckle —

More Casio GDF references