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Casio

Casio SAN-100H-7BJR Sauna Watch

Casio SAN-100H-7BJR Sauna Watch

Regular price $304.00 USD
Regular price Sale price $304.00 USD
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📄 Product Description

Introducing the Casio SAN-100H-7BJR, a uniquely designed Sauna Watch made exclusively for sauna enthusiasts. This innovative model from the Casio Collection is built to perform safely and reliably in high-temperature, high-humidity environments — perfect for those who enjoy long, relaxing sauna sessions.

Switch effortlessly between Sauna Mode and Regular Time Mode with a single button. The 12-minute sauna timer helps you keep track of your session with ease, while the luminous hands ensure visibility even in dimly lit sauna rooms.

Built with heat- and moisture-resistant materials, the SAN-100H-7BJR is safe to wear in saunas up to 100°C for up to 15 minutes. The resin case and band prevent burns, while internal components are designed to minimize heat transfer and prevent fogging. The curled band, inspired by traditional sauna locker keys, gives it a stylish yet practical look suitable for both sauna and daily use.


🔧 Key Features

  • Model: SAN-100H-7BJR

  • Collection: Casio Collection (Sauna Watch Series)

  • Gender: Unisex

  • Color: White

  • Case & Band Material: Resin (heat- and moisture-resistant)

  • Water Resistance: 5 ATM (suitable for saunas up to 100°C, 15 minutes max wear time)

  • Timer Function: 12-minute timer (ideal for sauna sessions)

  • Display: Analog

  • Luminous Hands: Yes (visibility in dark sauna rooms)

  • Battery Type: BR1225A (heat-resistant battery)

  • Battery Life: Approx. 5 years*
    *Calculated under usage of 3 sauna sessions per day (1 hr in sauna mode, 23 hrs in normal mode).

  • Accuracy: ±15 seconds/month (at normal temperature)

  • Special Features:

    • Sauna Mode / Normal Time Mode toggle

    • Fog-resistant glass

    • Heat-insulated internal components

    • Comfortable curved band inspired by sauna locker keys


📦 Set Contents

  • Casio SAN-100H-7BJR Main Unit

  • Original Casio Packaging

  • Instruction Manual (Japanese)


⚠️ Usage Notes

  • Designed for saunas up to 100°C, wear time limited to 15 minutes.

  • Do not use in environments hotter than typical sauna conditions.

  • Sudden temperature drops may cause temporary glass fogging — this is not a malfunction.

  • Luminous paint brightness varies depending on light exposure duration and intensity.


🏭 Product Details

Specification Description
Brand Casio
Model SAN-100H-7BJR
Series Casio Collection (Sauna Watch)
Type Unisex Analog Watch
Material Resin
Color White
Water Resistance 5 ATM
Battery Type BR1225A
Made in Japan
Authenticity 100% Genuine Japanese Domestic Product
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