Casio AQ-S820W-1AVCF, 50mm, Black Dial, Black Resin Strap
Casio AQ-S820W-1AVCF, Black Dial
The Casio AQ-S820W-1AVCF is a men's solar analogue-digital sport watch featuring 100m water resistance, a stopwatch, and world time.
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About this item
- Tough Solar technology charges from any light source, providing months of power.
- 100m water resistance, suitable for rain, splashes, swimming, and recreational water sports.
- Analogue hands and a digital screen display date, dual time, and 31 world time zones.
- Features a 1/100-second stopwatch, countdown timer, and multiple daily alarms.
- Amber LED backlight with afterglow for clear visibility in low-light conditions.
- Lightweight resin case, scratch-resistant resin glass, and comfortable resin band.
Top Highlights
- Brand
- Casio
- Model Name
- AQ-S820W
- Model Number
- AQ-S820W-1AVCF
- Department
- Men
- Item Type
- Watch
- Manufacturer
- Casio
- First Available
- 16 May 2025
Features & Specs
- Display
- Analog-Digital
- Movement Type
- Solar
- Calibre
- 5208
- Power Source
- Solar Powered
- Additional Features
- Calendaring, Light Up, Stop Watch, Water-resistant, World Time
- Complications
- Date, Chronograph, GMT
- Battery
- No battery (solar)
- Strap Type
- Two Piece Strap
- Case Material
- Resin
- Case Size
- 50.1 mm
- Case Thickness
- 12.7 mm
- Lug Width
- 20.0 mm
- Weight
- 149.688 g
- Water Resistance
- 100 m
- Strap
- Resin
- Clasp
- Buckle
- Crystal
- Resin
- Dimensions
- 11.61 x 8.79 x 7.39 cm; 149.69 g
Style
- Style Name
- AQS820W-1AV
- Dial Shape
- Round
- Dial Colour
- Black
- Band Color
- Black
- Face Style
- Crosshair
Will it fit your wrist?
Best on 21.6–22.6 cm (8.5–8.9 in) wrists
A 50.1 mm case sits just right on these wrists. If your wrist is 22.6–23.6 cm, it looks smaller and more understated. If your wrist is 20.6–21.6 cm, it looks bigger and bolder.
Measure your wrist and see what fitsA rough guide based on case diameter only.
Is this watch big or small?
94% of the men's watches we list are smaller than this one
The most common men's size is 42 mm (173 models). 3 models are 50.1 mm, like this one.
All our watch size dataDescription
The Casio AQ-S820W-1AVCF presents itself as a highly functional and robust analogue-digital timepiece, specifically tailored for the active man seeking reliability and convenience. This model from Casio's functional lineup combines classic analogue display with digital features, making it suitable for various daily activities and sports. Its durable construction ensures it can withstand the rigours of everyday use.
The AQ-S820W-1AVCF is powered by Tough Solar technology, converting any light source into energy, eliminating the need for battery replacements. The watch boasts a 100m water resistance rating, making it suitable for swimming and recreational water sports, while its resin case and resin glass provide excellent durability against impacts and scratches. The analogue-digital display offers both traditional time reading and access to multiple digital functions.
Beyond basic timekeeping, this Casio model includes a 1/100-second stopwatch, a countdown timer, and multiple alarms to help manage daily schedules efficiently. It also features world time functionality across 31 time zones, ideal for travellers or those tracking international events. An amber LED backlight ensures readability in low-light conditions, further enhancing its practicality and user-friendliness for any adventure.
Frequently Asked Questions
Can I wear the Casio AQ-S820W-1AVCF for swimming or showering?
Yes, the Casio AQ-S820W-1AVCF has a 100m water resistance rating, making it suitable for swimming and recreational water sports. However, it is generally advised to avoid wearing any watch in the shower due to potential issues with steam and soap affecting the seals over time.
How often do I need to change the battery in this Casio solar watch?
The Casio AQ-S820W-1AVCF features Tough Solar technology, which means it recharges its internal power cell using any light source. This eliminates the need for regular battery changes, offering a virtually maintenance-free power solution for daily use.
Is the Casio AQ-S820W-1AVCF suitable for intense sports activities?
Designed as a Sport Watch, the Casio AQ-S820W-1AVCF is built with a durable resin case and strap, making it robust enough for many sports. Its stopwatch and timer functions are useful for tracking performance, and its shock resistance helps it withstand impacts during active use.
What makes the Casio AQ-S820W-1AVCF different from other analogue-digital watches?
The Casio AQ-S820W-1AVCF stands out with its Tough Solar power system, offering eco-friendly operation without battery concerns. It combines a clear analogue display with a feature-rich digital screen, including world time and a stopwatch, providing a versatile alternative for active users.
What wrist size is suitable for the Casio AQ-S820W-1AVCF?
With a case size of 50.1mm, the Casio AQ-S820W-1AVCF is designed for larger wrists, typically fitting wrist circumferences from approximately 6.5 to 8.5 inches comfortably. Its lightweight resin construction ensures it remains comfortable for daily wear despite its size.
Is the resin glass on this watch durable against scratches?
The Casio AQ-S820W-1AVCF uses resin glass, which is highly resistant to shattering upon impact, making it durable for sport. While it offers good impact protection, resin glass is generally more susceptible to scratches compared to harder materials like sapphire crystal.
Editor's take
The Casio AQ-S820W-1AVCF presents itself as a highly functional and robust analogue-digital timepiece, specifically tailored for the active man seeking reliability and convenience. This model, part of Casio's enduring legacy of practical and durable watches, offers a blend of traditional time-telling with modern digital features, making it a versatile companion for both daily wear and outdoor pursuits. Its design prioritises utility and resilience, reflecting Casio's commitment to accessible, high-performance wristwear.
Central to the AQ-S820W-1AVCF's appeal is its Tough Solar power system, which harnesses light from any source to keep the watch running, effectively eliminating the need for battery changes. This eco-friendly and low-maintenance feature is complemented by a substantial 100m water resistance, ensuring the watch can comfortably handle swimming and various water sports. The use of a lightweight resin case and matching resin glass contributes to its overall durability and comfort on the wrist, making it an ideal choice for demanding environments.
While the AQ-S820W-1AVCF excels in functionality and durability, its aesthetic is distinctly utilitarian, which might not appeal to those seeking a more refined or classic look. The resin glass, though robust against impacts, is generally more prone to scratching than sapphire, a common trade-off in this price segment. Furthermore, the digital display, while feature-rich, can appear somewhat busy to users preferring a cleaner, more minimalist dial.
This Casio model is best suited for individuals who prioritise practical features, extreme durability, and a maintenance-free experience over traditional watchmaking aesthetics. It serves as an excellent everyday beater watch for outdoor enthusiasts, sports practitioners, or anyone needing a reliable, multi-functional timepiece. For those desiring a more traditional appearance or higher scratch resistance, exploring other Casio collections or entry-level mechanical sport watches might be a more fitting alternative.
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