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The Casio LCW-M100TSE (ref. LCW-M100TSE-1A2) is a solar sport watch, with a 40mm titanium case, 9.4mm thick, with a ~22 months in darkness (power-save)-hour power reserve. Water resistance is rated to 50m, under a sapphire crystal with anti-reflective coating crystal, with radio-controlled (multiband, 6 auto-receives/day), world time (29 cities), 1/100s stopwatch, countdown timer complications.