FNGEEN Automatic Double Sided Hollow Watch, model 00202, is a 39 mm mechanical timepiece designed for everyday wear and visible movement. The open, double-sided hollow case exposes the automatic movement while the tempered glass mirror protects the dial.
Use case: suitable for users who want a mechanical watch that shows internal mechanics and fits casual or office outfits. The 260 mm strap and 20 mm lug width accommodate a range of wrist sizes; the 30 m "life waterproof" rating covers hand washing and light splashes.
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Case diameter: 39 mm; thickness 13 mm for a moderate wrist profile
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Movement: automatic mechanical movement, visible via hollow case
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Materials: metal case, tempered glass mirror; strap in steel or leather
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Strap: 20 mm width, 260 mm length, buckle clasp
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Features: luminous hands, double-sided display, 30 m life waterproof
Light specifications: weight 125 g. Fit statement: adjustable strap fits most adult wrists; remove links or choose leather option for a closer fit.