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Casio module 3502 manual and CR2032 battery

Casio's operation guide for module 3502: Casio operation guide 3502 (PDF) ↗. Casio module 3502 is a digital module by Casio, used in 3 Casio models. It runs on CR20321 for about 10 years1 and keeps time to ±30 s/month1.

Sources checked · How we source numbers
CR2032: drawing to scaleCR2032: diameter 20 mm, height 3.2 mm.Ø 20−+3.2CR2032
CR2032, the cell the Casio 3502 takesDrawing from data, not a photo · mm

Casio 3502 at a glance

Display
digital1derived
Power
battery1
Battery
CR20321
Battery life
10 years1
Accuracy
±30 s/month1
Light
LED backlight1
World time
dual time1

New to the terms? Read quartz vs automatic or watch movement types.

Watches with module 3502

3 models in 1 family share module 3502, so they share its battery, functions and manual[2].

Casio operation guide 3502 (PDF) ↗
The one model on module 3502 we have case sizes for, top view. W = case width, L = Casio case length, L2L = lug to lug, H = thickness. Drawn from the published sizes, not a photo.
  • AE-15003 modelsAE-1500WH · AE-1500WHC · AE-1500WHX

Running the Casio 3502

Accuracy and battery figures for the Casio 3502, as Casio prints them.

Accuracy (maker)
±30 s/month1
Battery life
10 years1

Battery for the Casio 3502

  • CR2032[1]Sizes and equivalents of the CR2032 on its page

All Casio 3502 figures

Every figure we hold for the Casio 3502, with its source. Where sources disagree, each value is shown.

Accuracy and care

Accuracy (maker)
±30 s/month1

Power

Power source
battery1
Battery
CR20321
Battery life
10 years1

Module functions

Display
digital1derived
Light
LED backlight1
Alarms
5 multi-function alarms (1 with snooze), hourly time signal1
Countdown timer
1 minute to 24 hours1
Stopwatch
1/100 s; capacity 23:59'59.991
Dual time
dual time1

Not published yet

  • Hands and functions: not published
  • Radio time signal: not published by Casio
  • Operating temperature: not published by Casio
  • Power saving: not published

Casio 3502 questions

Where is the manual for Casio module 3502?

Casio publishes the operation guide for module 3502 as a PDF: Casio operation guide 3502. The number 3502 is stamped on the case back of every watch built on it.

What battery does the Casio module 3502 take?

The Casio module 3502 takes CR2032; Casio gives 10 years of life.

Source [1]

Which watches use Casio module 3502?

3 Casio models in Casio’s manual search use module 3502, in the AE-1500 family.

More on movements

Sources

Documents checked · Report a wrong number

  1. 1Casio Computer Co., Ltd. — Operation guide, module 3502 (qw3502_EN.pdf) · pdf · read
  2. 2Casio Computer Co., Ltd. — Watch manual search JSON (US locale), manual_search.support.json · json · read