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Water ResistanceWatch water resistance ratings from 30m to 1000m+ indicate safe usage depths.Rating Guide30m: Splash resistant50m: Hand washing OK100m: Swimming OK200m+: Diving OK
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Case FinishingWatch case finishing techniques include brushed, polished, and sandblasted surfaces.Finishing TypesBrushed: Subtle, practicalPolished: Elegant, formalSandblasted: Mat
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Beat RateWatch movement beat rate in beats per hour directly affects timekeeping accuracy and smoothness.Accuracy Guide21600 BPH: Standard accuracy28800 BPH: Better accuracy36000 B
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Width RatioThe ratio between strap width and case diameter affects the visual balance of your watch.Ratio Guide20mm strap / 40mm case: Balanced18mm strap / 36mm case: Classic22mm s
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Index TypesWatch dial indices come in baton, Roman, Arabic, and diamond styles for different aesthetics.Index StylesBaton: Modern, cleanRoman: Classic, formalArabic: Sporty, readab
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Crown TypesWatch crowns come in screw-down, push-pull, and onion styles for different purposes.Crown TypesScrew-down: Water resistantPush-pull: Easy operationOnion: Vintage styleFl
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Bezel MaterialsBezel inserts come in ceramic, aluminum, steel, and sapphire with different durability levels.Material ComparisonCeramic: Scratch proof, premiumAluminum: Lightweight
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Case Back TypesWatch case backs come in solid, exhibition display, and screw-down varieties.Types OverviewSolid: Better water resistanceDisplay: Shows movementScrew-down: Maximum s
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Lug DesignWatch lug designs determine how straps connect and how the watch sits on your wrist.Lug TypesStraight lugs: Classic lookCurved lugs: Better comfortHidden lugs: Clean appe
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AR CoatingAnti-reflective coating on watch crystals reduces glare and improves dial readability.AR TypesSingle AR: Inside onlyDouble AR: Both sidesBlue AR: Signature tintGreen AR:
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Case Shape GuideWatch case shapes include round, rectangular, tonneau, cushion, and octagonal designs.Shape TypesRound: Classic, versatileRectangular: Dressy, elegantTonneau: Art d
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Balance SpringBalance spring material affects temperature stability and magnetic resistance of the movement.Material TypesInvar: Low thermal expansionNivarox: Self-compensatingSili