Casio Retro F-91WM-9AEF, 31mm, Black Dial, Black Resin Strap
Casio Retro, Black Dial
The Casio Retro F-91WM-9AEF is a women's digital quartz watch featuring a square black dial, 100m water resistance, and practical chronograph functions.
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About this item
- Measures elapsed, split, and final times with 1/100th second accuracy.
- Daily alarm provides an audible signal for recurring events.
- Automatic calendar displays the correct date once set.
- Built-in light illuminates the watch face from the side.
- Water resistant to DIN 8310 / ISO 22810 for minor splashing.
Top Highlights
- Brand
- Casio
- Model Name
- Retro
- Model Number
- F-91WM-9AEF
- Department
- Unisex
- Item Type
- Wrist Watch
- Manufacturer
- Casio
- First Available
- 12 January 2017
Features & Specs
- Display
- Digital
- Movement Type
- Quartz
- Calibre
- 593
- Power Source
- Battery powered
- Additional Features
- Alarm
- Complications
- Chronograph, Date, Alarm
- Strap Type
- Two Piece Strap
- Case Material
- Resin
- Case Size
- 31.0 mm
- Case Thickness
- 9.0 mm
- Lug Width
- 20.0 mm
- Weight
- 20.0 g
- Water Resistance
- 100 m
- Sport Type
- Walking
- Strap
- Resin
- Clasp
- Buckle
- Closure Type
- Buckle
- Embellishment
- Crystal
- Crystal
- Acrylic
- Dimensions
- 5.99 x 11.2 x 10.01 cm; 20.98 g
Style
- Style Name
- Modern
- Dial Shape
- Square
- Dial Colour
- Black
- Band Color
- Black
- Theme
- Sports
- Face Style
- Modern
Will it fit your wrist?
Best on 12.0–13.0 cm (4.7–5.1 in) wrists
A 31 mm case sits just right on these wrists. If your wrist is 13.0–14.0 cm, it looks smaller and more understated.
Measure your wrist and see what fitsA rough guide based on case diameter only.
Is this watch big or small?
81% of the watches we list are bigger than this one
The most common size is 40 mm (249 models). 19 models are 31 mm, like this one.
All our watch size dataDescription
The Casio Retro F-91WM-9AEF is a modern icon, a digital quartz timepiece from the enduring Casio Collection that blends nostalgic design with reliable functionality. This model appeals to a broad demographic, particularly women seeking a lightweight, compact, and affordable watch for everyday wear, valuing practicality over intricate mechanics. Its widespread appeal has made it a cultural touchstone.
Technically, the F-91WM-9AEF showcases efficient engineering. Powered by a robust quartz movement, it offers precise timekeeping alongside practical digital functions: a 1/100th second chronograph, a daily alarm, and an automatic calendar. The 31mm resin case and matching resin strap provide a comfortable fit and remarkable durability, suitable for various daily activities. Its 100m water resistance, certified to DIN 8310 / ISO 22810, ensures it can withstand splashes and brief immersion, enhancing its versatility.
Despite its strengths, the watch's simplicity has trade-offs. The plastic crystal, while durable against impacts, is more susceptible to scratches compared to sapphire or mineral glass, potentially impacting its long-term appearance. Moreover, its purely digital display, though clear, lacks the traditional charm or complex mechanical artistry sought by analog watch enthusiasts, firmly positioning it as a utility-first device.
The Casio Retro F-91WM-9AEF is highly recommended for those prioritising reliability, affordability, and a distinctive retro aesthetic. It excels as a daily companion or a secondary watch for casual use. Individuals seeking a more premium feel, advanced features like solar charging, or a traditional analog display might consider other Casio offerings or entry-level smartwatches as alternatives.
Frequently Asked Questions
Is the Casio Retro F-91WM-9AEF suitable for daily wear and light sports activities?
Yes, the Casio Retro F-91WM-9AEF is designed for daily wear and can handle light sports. Its resin case and strap make it durable and comfortable, while the 100m water resistance protects it from splashes during activities like walking or light exercise.
How does the Casio Retro F-91WM-9AEF compare to other basic digital watches in its price range?
The Casio Retro F-91WM-9AEF stands out with its iconic retro design and proven reliability. While many basic digital watches offer similar functions, this model's 100m water resistance and durable resin construction provide a superior balance of features and longevity, making it a popular choice.
What is the typical battery life for this watch, and is it user-replaceable?
The battery life for the Casio Retro F-91WM-9AEF is generally very long, often lasting several years, though specific duration can vary with usage of the backlight and alarm. While technically possible to replace, it is recommended to have the battery changed by a professional to ensure the 100m water resistance seal is maintained.
Can I swim or shower while wearing the Casio Retro F-91WM-9AEF?
The Casio Retro F-91WM-9AEF has a water resistance of 100m, certified to DIN 8310 / ISO 22810. This means it is resistant to minor splashing and brief immersion. While it can withstand swimming, it is generally not recommended for showering due to temperature changes and soap, which can compromise the seals over time.
Who is the Casio Retro F-91WM-9AEF most suitable for, given its features and design?
This watch is ideal for women and individuals who appreciate a minimalist, retro aesthetic combined with practical digital functions. Its lightweight 31mm resin case and comfortable fit make it perfect for everyday wear, offering reliability and a touch of nostalgia without being overly complex.
Editor's take
The Casio Retro F-91WM-9AEF is a modern icon, a digital quartz timepiece from the enduring Casio Collection that blends nostalgic design with reliable functionality. This model appeals to a broad demographic, particularly women seeking a lightweight, compact, and affordable watch for everyday wear, valuing practicality over intricate mechanics. Its widespread appeal has made it a cultural touchstone.
Technically, the F-91WM-9AEF showcases efficient engineering. Powered by a robust quartz movement, it offers precise timekeeping alongside practical digital functions: a 1/100th second chronograph, a daily alarm, and an automatic calendar. The 31mm resin case and matching resin strap provide a comfortable fit and remarkable durability, suitable for various daily activities. Its 100m water resistance, certified to DIN 8310 / ISO 22810, ensures it can withstand splashes and brief immersion, enhancing its versatility.
Despite its strengths, the watch's simplicity has trade-offs. The plastic crystal, while durable against impacts, is more susceptible to scratches compared to sapphire or mineral glass, potentially impacting its long-term appearance. Moreover, its purely digital display, though clear, lacks the traditional charm or complex mechanical artistry sought by analog watch enthusiasts, firmly positioning it as a utility-first device.
The Casio Retro F-91WM-9AEF is highly recommended for those prioritising reliability, affordability, and a distinctive retro aesthetic. It excels as a daily companion or a secondary watch for casual use. Individuals seeking a more premium feel, advanced features like solar charging, or a traditional analog display might consider other Casio offerings or entry-level smartwatches as alternatives.
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