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The Verdict

The Casio PRG-270-1 is the definitive "no-nonsense" tool watch for those who need Triple Sensor technology without the premium price tag of Atomic (Multi-Band 6) models.

Value vs. Trade-off

The Strengths: Powered by Tough Solar, this model eliminates battery anxiety entirely. It utilizes the Version 3 Triple Sensor, which provides significantly faster and more precise Altimeter, Barometer, and Compass readings compared to older generations. Users prize the dedicated, oversized sensor buttons for easy operation with gloves and the inclusion of Sunrise/Sunset data, a high-utility feature typically reserved for more expensive units. Its 100M water resistance and low-temperature tolerance make it a legitimate survival tool rather than a lifestyle accessory.

The Weaknesses: The chassis is substantial; at over 14mm thick, it is prone to snagging on sleeves and may overwhelm smaller wrists. The resin strap is functional but feels "plasticky" compared to the carbon-fiber inserts found on higher-end Pro Treks. Additionally, the thermometer requires the watch to be off-wrist for roughly 20 minutes to provide an accurate ambient reading, as body heat interferes with the sensor.

The Verdict: While you trade away the "set-and-forget" convenience of Atomic time syncing, the PRG-270-1 is a tremendous value proposition. You are getting the same core sensor accuracy found in Casio’s flagship models at a fraction of the cost. For the outdoorsman who prioritizes raw functionality and solar-powered reliability over a slim profile, this is arguably the most cost-effective ABC (Altimeter/Barometer/Compass) watch on the market. It is a definitive buy for those who need a rugged, independent tool that simply works.

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ModelPRG270-1GA100C-1A3MTG-M900DA-8CRGW-M5610U-1B20072GBD200-122340
StyleSportsSportsSportsSportsSportsSportsDive
MovementSolar (Light Powered)Quartz (Battery Powered)Solar (Light Powered)Solar (Light Powered)Quartz (Battery Powered)Quartz (Battery Powered)Quartz (Battery Powered)
Display TypeDigital (Screen)Digital (Screen)Digital (Screen)Digital (Screen)Analog (Hands)Digital (Screen)Analog (Hands)
BrandCasioCasioCasioCasioInvictaG-ShockInvicta
Band MaterialRubber / SiliconeRubber / SiliconeStainless SteelRubber / SiliconeRubber / Silicone—Rubber / Silicone
FeaturesAlarm, Chronograph (Stopwatch), Luminous Hands & Markers, GMT / Dual Time ZoneChronograph (Stopwatch), Alarm, GMT / Dual Time ZoneGMT / Dual Time Zone, Chronograph (Stopwatch), Alarm, Luminous Hands & MarkersChronograph (Stopwatch), Alarm, GMT / Dual Time Zone, Date DisplayChronograph (Stopwatch), Luminous Hands & MarkersChronograph (Stopwatch), GMT / Dual Time ZoneChronograph (Stopwatch), Luminous Hands & Markers
Water ResistanceSwimming (50M - 100M)Diving (200M & Up)Diving (200M & Up)Diving (200M & Up)Swimming (50M - 100M)Diving (200M & Up)Swimming (50M - 100M)
Dial ColorBlack, GrayBlack—BlackBlackBlackBlack
GenderMensMensMensMensMensMensMens

About this product

  • Tough Solar Power, 100M Water Resistant, Low Temperature Resistant (-10 C / 14 F), Altimeter, Digital Compass, Barometer, Thermometer. Thermometer Display range: -10 to 60 C (14 to 140 F) Display unit: 0.1 C (0.2 F)
  • Full Auto LED (Super Illuminator) Backlight with Afterglow, World Time, 31 time zones (48 cities + UTC), city name display, daylight saving on/off, Sunrise/Sunset Data, 5 Daily Alarms (4 one-time and 1 snooze alarm)
  • Hourly Time Signal, 1/10 Second Stopwatch, Countdown Timer, 12/24 Hour Formats, Button operation tone on/off
  • Storage Battery. Solar Rechargeable Battery, Battery Level Indicator
  • Power Saving Function, Approx. Battery Life: 9 months on full charge (without further exposure to light), Module 3415

Specifications

Brand
Casio
Model
PRG270-1
Part Number
PRG-270-1
Gender
Mens
Brand
Casio
Style
Sports
Display
Digital (Screen)
Case Diameter
52 mm
Band
Rubber / Silicone
Features
Alarm, Chronograph (Stopwatch), Luminous Hands & Markers, GMT / Dual Time Zone
Water Resistance
Swimming (50M - 100M)
Dial Color
Black, Gray
Movement
Solar (Light Powered)
Width
0.59 inches
Height
0.59 inches
Depth
0.59 inches
Weight
0.6 pounds
Colour
Black
Released
2013-09-30T00:00:01Z
Manufacturer
Casio
UPC
079767919726
GTIN
00079767919726

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