CASIO CALCULATOR WATCH CA53WB-3B

 CASIO CALCULATOR WATCH CA‑53WB‑3B – Blue‑Green Retro Digital Watch

The CASIO CA‑53WB‑3B brings iconic retro style to your wrist with a full calculator keypad and digital display inspired by the classic Casio Mini calculator from the 1970s. Its vintage design features a grid‑style keypad and bold green text on a negative LCD, with a pop of red for the mode indicator — perfect for casual and everyday wear with a nostalgic twist. Made with durable resin and a comfortable band, this watch blends practical utility with distinctive 80s charm.

Key Features:

• Full 8‑digit calculator right on your wrist — add, subtract, multiply and divide on the go.

• Dual time function to track two time zones.

• 1/100‑second stopwatch for precise timing.

• Daily alarm and hourly time signal.

• Full auto‑calendar pre‑programmed up to the year 2099.

• 12/24‑hour format option.

• Eco‑friendly details: Bio‑based resin band made using renewable materials.

 Specifications

Design & Materials

• Case / Bezel: Resin (lightweight & durable)

• Band: Bio‑based resin strap

• Glass: Resin Glass

• Display: Negative LCD with green text and red mode marker

Dimensions & Weight

• Case Size: 43.2 × 34.4 × 8.2 mm

• Weight: Approx. 25 g

• Band Fit: Compatible with wrist size ~125–180 mm

Watch Functions

• Calculator: 8‑digit basic functions ( + – × ÷ )

• Stopwatch: 1/100‑second with elapsed/split times

• Dual Time / World Time: Yes

• Alarm: Daily alarm with hourly signal

• Calendar: Auto‑calendar through 2099

• Time Format: 12/24‑hour

Performance

• Water Resistance: Splash & everyday water resistance (casual wear)

• Accuracy: ±15 seconds per month

• Battery: CR2016, approx. 5‑year life