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Roberto Bianci

Roberto Bianci La Rosa RB18630 watch 21mm 43mm 50m

SKU CH-KGCK-NBMXF MPN RB18630

A stainless-steel cased, leather-strapped quartz watch with a blue dial, 21 mm case, 43 mm band and 50 m water resistance

  • Series NameLa Rosa
  • MaterialLeather
  • MovementQuartz
  • ColorBlue
  • AdjustableYes
  • ShapeRound Oval
  • Sapphire crystal resists everyday scratches
  • 50 m water resistance suits swimming and showers
  • Swiss quartz movement keeps accurate time
  • 21 mm stainless-steel case fits slender wrists
  • 43 mm leather strap adjusts for comfort

Women's La Rosa quartz watch

The Roberto Bianci La Rosa RB18630 is a ladies' dress watch with a 21 mm stainless steel case and a blue dial protected by sapphire crystal. A leather strap secures the watch and fits wrists with a 43 mm lug width. Swiss quartz movement powers the hands without a date window or chronograph sub-dials. Water resistance is rated to 50 metres.

Suited to minimalist dress wear.

The slim 12 mm profile and absence of complications make it appropriate for formal or everyday outfits where a subtle accessory is preferred. Buyers who want a date display, stopwatch function or luminous hands should look elsewhere. The 50 metre rating covers splashes and brief immersion but not swimming or diving. The fixed leather band may not suit wearers requiring metal bracelets or quick-release spring bars.

21 mm case diameter decides fit

The 21 mm case diameter is the primary measurement that determines whether the watch sits proportionally on the wearer's wrist. A 43 mm lug width matches straps designed for this case size. Sapphire crystal and 50 metre water resistance support daily durability but do not change the dimensional fit.

Highlights

  • Sapphire crystal resists everyday scratches
  • 50 m water resistance suits swimming and showers
  • Swiss quartz movement keeps accurate time
  • 21 mm stainless-steel case fits slender wrists
  • 43 mm leather strap adjusts for comfort

Specifications

BrandRoberto Bianci
ModelRB18630
Series NameLa Rosa
MaterialLeather
MovementQuartz
ColorBlue
AdjustableYes
ShapeRound Oval
DateNo Date
ChronographNo Chronograph
Band MaterialLeather
Band Width43mm
GenderFemale
AgeAdult
ConditionNew
Case Diameter21mm
Case MaterialStainless Steel
Case Thickness12
CrystalSapphire
Water-Resistant50m

Questions about this item

How deep can the 50 m water resistance actually take the watch?

The 50 m rating (5 ATM) covers swimming and showering but not diving or high-pressure water sports.

Will the 43 mm leather strap fit the 21 mm case lugs without a gap?

The 43 mm figure is the strap width at the buckle; the lug width matches the 21 mm case so the strap tapers to fit flush.

Does the sapphire crystal need a special tool to swap the leather band?

No, the band uses standard spring bars; a spring-bar tool or thin screwdriver releases them without touching the crystal.

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