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CASIO EU WATCHES F-91WS-4EF (F-91WS-4EF) – Women’s Watch

Original price was: R4194,75.Current price is: R3669,75.

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CASIO EU WATCHES F-91WS-4EF (F-91WS-4EF) –

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CASIO EU WATCHES F-91WS-4EF (F-91WS-4EF) - Women's Watch
CASIO EU WATCHES F-91WS-4EF (F-91WS-4EF) - Women's Watch
R4194,75 Original price was: R4194,75.R3669,75Current price is: R3669,75.

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CASIO EU WATCHES F-91WS-4EF (F-91WS-4EF) - Women's Watch
CASIO EU WATCHES F-91WS-4EF (F-91WS-4EF) – Women’s Watch
R4194,75 Original price was: R4194,75.R3669,75Current price is: R3669,75.
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Women’s Watches size guide

Jump to:
Coin Size Comparison |
Wrist Proportions |
Watch Complications |
Smartwatch Health |
Recommended Models |
Sizing FAQs

Women's Watch Size Comparison with South African Coins

Visualizing Size with SA Currency

To help you visualize case diameters before you buy, compare these standard sizes to the South African Rand coins in your wallet:

  • 28mm – 30mm: Similar to a 50c coin (28.8mm). Ideal for petite wrists.
  • 32mm – 34mm: Slightly larger than a R5 coin (26mm). The most versatile daily size.
  • 36mm – 40mm: Larger than any SA coin. Best for bold “Boyfriend” styles or smartwatches.

The “Flat Surface” Rule

Measure the flat width of the top of your wrist. For the best fit, the “lugs” should never extend past the edges of your arm. Overhanging lugs make a watch look bulky and feel unstable.

Hypoallergenic Materials

If you have sensitive skin, prioritize these materials:

  • 316L Steel: Surgical grade with low nickel.
  • Titanium: 100% biocompatible and ultra-light.
  • Silicone: The best choice for cycling/sport.

The Chronometer

A Chronometer is a certification of extreme accuracy. It means the watch has been tested to stay accurate within seconds per day regardless of conditions.

The Moonphase

A Moonphase tracks the 29.5-day lunar cycle. It is a beautiful celestial complication often used to track personal wellness rhythms.

Smartwatches & Women’s Health

Look for these specific metrics to get the most out of your wearable:

  • Cycle Tracking: Uses wrist temperature to provide ovulation estimates.
  • SpO2 & Sleep: Measures blood oxygen and analyzes deep/REM sleep cycles.
  • Body Battery: (Garmin specific) Tracks your energy levels throughout the day.

Watch Sizing & Tech FAQs

WhatsApp: +27 87 092 7908

What is the most popular size for women?
The 32mm to 34mm range is the most popular. It is large enough to be readable but small enough to remain elegant for formal occasions.

Can I wear a 40mm watch on a small wrist?
Yes, if you prefer the “Boyfriend” look. Just ensure the strap can be tightened enough to keep the health sensors in contact with your skin.

Is titanium better than stainless steel?
For sensitive skin, yes. Titanium is 100% biocompatible and nickel-free, making it the top choice for preventing rashes.

What does “10 ATM” mean?
10 ATM means water-resistant to 100 meters. This is the minimum rating we recommend for regular swimming or snorkeling.

CASIO EU WATCHES F-91WS-4EF (F-91WS-4EF)

Additional information

Weight 0,5 kg
Dimensions 15 × 15 × 15 cm
Main Type

Watch
Sub Type

Temple Length - Eyewear

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