---
product_id: 50306262
title: "Watch with Movement Japanese Quartz Movement w-800hg-9av 35 mm"
brand: "casio"
price: "$93.89"
currency: USD
in_stock: true
reviews_count: 7
category: "Casio"
url: https://www.desertcart.us/products/50306262-watch-with-movement-japanese-quartz-movement-w-800hg-9av-35
store_origin: US
region: United States of America
---

# 100m water resistance Sauna-ready heat tolerance Multi-function stopwatch & alarm Watch with Movement Japanese Quartz Movement w-800hg-9av 35 mm

**Brand:** casio
**Price:** $93.89
**Availability:** ✅ In Stock

## Summary

> 🔥 Timeless toughness meets sleek simplicity ⏱️

## Quick Answers

- **What is this?** Watch with Movement Japanese Quartz Movement w-800hg-9av 35 mm by casio
- **How much does it cost?** $93.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/50306262-watch-with-movement-japanese-quartz-movement-w-800hg-9av-35)

## Best For

- casio enthusiasts

## Why This Product

- Trusted casio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ultimate Sauna Companion:** Withstands 90°C dry heat without glitching or fogging
- • **Lightweight & Comfortable:** Only 37g with a soft, sweat-resistant resin strap
- • **Long-lasting Battery Life:** Up to 10 years of power—no charging, no cables, no interruptions
- • **Dual Time Zone & 12/24 Hour Format:** Stay effortlessly synced across borders and schedules
- • **Precision Japanese Quartz Movement:** Reliable timekeeping with zero fuss for over a decade

## Overview

The Casio W-800HG-9AV is a 35mm digital watch featuring a robust Japanese quartz movement, 100m water resistance, and a multi-function alarm with stopwatch. Designed for extreme conditions, it excels in dry heat environments like saunas, offering a lightweight, sweat-resistant resin strap and a clear, easy-to-read display with dual time zones. With up to 10 years of battery life and a durable acrylic screen, this watch delivers dependable, no-nonsense performance for professionals who demand reliability and comfort in every setting.

## Description

Water resistant 100 metres. Multi function alarm (One-time or 7-time snooze). 12/24 hour format. Stopwatch. Dual time.

Review: Better than expected - Even better than I was expecting. Delighted with the watch. Great delivery and packaging. A+
Review: Perfect Sauna Companion - Dry heat, humidity, sweat, and all. While most modern digital watches are marketed for running, swimming, or military-style wear, this humble Casio thrives where you’d least expect: on the slatted bench of a 90°C Finnish-style sauna, where metal bands burn your skin and delicate electronics fail fast. This one doesn’t. I initially worried about chemical leakage in the sauna heat, so my friend—an expert in materials engineering—helped me run repeated high-temp sessions and surface wipe tests, confirming the Casio remained fully sealed and safe throughout. It’s incredibly lightweight at 37g—so much so that I forget I’m even wearing it. That makes a huge difference when you’re lying down and trying to relax. No cold metal, no dragging feeling on your wrist, no discomfort even when skin is damp or sticky. The resin strap is soft and pliable and doesn’t absorb sweat. It dries fast and doesn’t develop odour over time, even with repeated sauna use. I just rinse it in water afterwards and hang it with my towel. What’s truly impressive, though, is how well this watch copes with heat. I’ve worn it during repeated 15–20 minute sessions in a 90–95°C dry sauna, and it's never once glitched, fogged, or shut off. That’s a tall order for any battery-powered device. I wouldn’t submerge it in boiling water (it’s water-resistant to 100m, not steam-rated), but for dry heat? No problem. I don’t like taking my phone into hot rooms or relying on wall clocks, so this gives me full control over my session timing—down to the second with its built-in stopwatch. The digital display is large and legible even in low light. I use the backlight button when it’s darker in the sauna or early morning. The screen isn’t cluttered: it gives me the time, day, date, and the secondary time zone if needed. The stopwatch is very easy to start and stop, and the buttons are nicely tactile. No fiddling required—just simple, intuitive function. I’ve never had a missed press or delay, even with wet fingers. Battery life is supposed to last around 10 years, and given Casio’s track record with these movements, I believe it. No charging, no cables, no smart gimmicks to fail—just straightforward Japanese quartz reliability. The buttons don’t feel mushy or soft like cheaper knockoffs. They click with precision, and the strap buckle is solid enough to feel trustworthy, even when adjusted tight. I also appreciate the low profile. At 35mm, the case is modest by today’s standards, which makes it ideal for more discrete use. It fits neatly under a cuff, doesn’t catch on towels or clothing, and sits close to the wrist without wobbling. The acrylic screen does scratch a bit over time, but I prefer that to cracking, which glass faces tend to do when exposed to impact or stress—like temperature swings. For this reason alone, I’d take this over a Gorilla Glass or sapphire crystal model for sauna use. In day-to-day wear outside the sauna, it’s just as dependable. Whether I’m out walking, in the garden, or doing DIY work, I never worry about it getting knocked or wet. The water resistance holds up in the rain and even in the shower, and the alarm is loud enough to wake me up reliably. The dual time zone feature is a bonus when I’m travelling between the UK and Europe and want to keep track of both zones. If I had to nitpick, I’d say the design is unapologetically utilitarian. It’s not trying to look like a fashion watch or something you’d wear to a dinner party—but that’s also part of the charm. It’s function over form in the best way. The orange-accented screen adds a bit of personality, and the strap holes don’t wear out or stretch over time. In short: it’s not pretty, but it performs. Would I wear it to a wedding? No. Would I trust it with my timing during a sauna detox session or icy plunge recovery afterwards? Absolutely. In fact, I’ve now bought a second one as a backup—though I doubt I’ll need it anytime soon. If you value comfort, simplicity, durability, and excellent timekeeping under extreme conditions, this is the best under-£20 watch you’ll ever own. It’s the ultimate sauna-safe digital timepiece—no fuss, no gimmicks, just solid old-school engineering that gets the job done.

## Features

- Digital
- 14
- Day, date, and month
- 37
- Dial

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B002IJ64J2 |
| Batteries  | 1 C batteries required. (included) |
| Best Sellers Rank | 573,193 in Fashion ( See Top 100 in Fashion ) 4,080 in Men's Wrist Watches |
| Customer reviews | 4.7 4.7 out of 5 stars (81) |
| Date First Available  | 25 May 2009 |
| Department  | Unisex - Adult |
| Is discontinued by manufacturer  | No |
| Item model number  | W-800HG-9AVDF |
| Language  | English |
| Manufacturer  | Casio |
| Product Dimensions  | 3.1 x 17.4 x 14.2 cm; 37 g |

## Images

![Watch with Movement Japanese Quartz Movement w-800hg-9av 35 mm - Image 1](https://m.media-amazon.com/images/I/61RuA9N8PrL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Better than expected
*by S***G on 31 March 2025*

Even better than I was expecting. Delighted with the watch. Great delivery and packaging. A+

### ⭐⭐⭐⭐⭐ Perfect Sauna Companion
*by J***H on 4 April 2025*

Dry heat, humidity, sweat, and all. While most modern digital watches are marketed for running, swimming, or military-style wear, this humble Casio thrives where you’d least expect: on the slatted bench of a 90°C Finnish-style sauna, where metal bands burn your skin and delicate electronics fail fast. This one doesn’t. I initially worried about chemical leakage in the sauna heat, so my friend—an expert in materials engineering—helped me run repeated high-temp sessions and surface wipe tests, confirming the Casio remained fully sealed and safe throughout. It’s incredibly lightweight at 37g—so much so that I forget I’m even wearing it. That makes a huge difference when you’re lying down and trying to relax. No cold metal, no dragging feeling on your wrist, no discomfort even when skin is damp or sticky. The resin strap is soft and pliable and doesn’t absorb sweat. It dries fast and doesn’t develop odour over time, even with repeated sauna use. I just rinse it in water afterwards and hang it with my towel. What’s truly impressive, though, is how well this watch copes with heat. I’ve worn it during repeated 15–20 minute sessions in a 90–95°C dry sauna, and it's never once glitched, fogged, or shut off. That’s a tall order for any battery-powered device. I wouldn’t submerge it in boiling water (it’s water-resistant to 100m, not steam-rated), but for dry heat? No problem. I don’t like taking my phone into hot rooms or relying on wall clocks, so this gives me full control over my session timing—down to the second with its built-in stopwatch. The digital display is large and legible even in low light. I use the backlight button when it’s darker in the sauna or early morning. The screen isn’t cluttered: it gives me the time, day, date, and the secondary time zone if needed. The stopwatch is very easy to start and stop, and the buttons are nicely tactile. No fiddling required—just simple, intuitive function. I’ve never had a missed press or delay, even with wet fingers. Battery life is supposed to last around 10 years, and given Casio’s track record with these movements, I believe it. No charging, no cables, no smart gimmicks to fail—just straightforward Japanese quartz reliability. The buttons don’t feel mushy or soft like cheaper knockoffs. They click with precision, and the strap buckle is solid enough to feel trustworthy, even when adjusted tight. I also appreciate the low profile. At 35mm, the case is modest by today’s standards, which makes it ideal for more discrete use. It fits neatly under a cuff, doesn’t catch on towels or clothing, and sits close to the wrist without wobbling. The acrylic screen does scratch a bit over time, but I prefer that to cracking, which glass faces tend to do when exposed to impact or stress—like temperature swings. For this reason alone, I’d take this over a Gorilla Glass or sapphire crystal model for sauna use. In day-to-day wear outside the sauna, it’s just as dependable. Whether I’m out walking, in the garden, or doing DIY work, I never worry about it getting knocked or wet. The water resistance holds up in the rain and even in the shower, and the alarm is loud enough to wake me up reliably. The dual time zone feature is a bonus when I’m travelling between the UK and Europe and want to keep track of both zones. If I had to nitpick, I’d say the design is unapologetically utilitarian. It’s not trying to look like a fashion watch or something you’d wear to a dinner party—but that’s also part of the charm. It’s function over form in the best way. The orange-accented screen adds a bit of personality, and the strap holes don’t wear out or stretch over time. In short: it’s not pretty, but it performs. Would I wear it to a wedding? No. Would I trust it with my timing during a sauna detox session or icy plunge recovery afterwards? Absolutely. In fact, I’ve now bought a second one as a backup—though I doubt I’ll need it anytime soon. If you value comfort, simplicity, durability, and excellent timekeeping under extreme conditions, this is the best under-£20 watch you’ll ever own. It’s the ultimate sauna-safe digital timepiece—no fuss, no gimmicks, just solid old-school engineering that gets the job done.

### ⭐⭐⭐⭐⭐ Review
*by C***N on 24 November 2025*

Perfeito. Completo com o livreto, a garantia, etc. Relógio excelente.

## Frequently Bought Together

- Casio Watch with Movement Japanese Quartz Movement w-800hg-9av 35 mm
- Casio G-Series F-94WA-9 F-94WA

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-08*