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Module · Casio · analog-digital module

Casio module 5398 manual

Casio's operation guide for module 5398: Casio operation guide 5398 (PDF) ↗. Casio module 5398 is an analog-digital module by Casio, used in 14 Casio models. It runs on 2 × SR927SW1 for about 3 years1 and keeps time to ±15 s/month1.

Sources checked · How we source numbers
SR927SW: drawing to scaleSR927SW: diameter 9.5 mm, height 2.7 mm.Ø 9.5−+2.7SR927SW
SR927SW, the cell the Casio 5398 takesDrawing from data, not a photo · mm

Casio 5398 at a glance

Display
analog-digital1derived
Power
battery1
Battery
2 × SR927SW1
Battery life
3 years1
Accuracy
±15 s/month1
Light
LED, selectable duration, auto light switch1
World time
48 cities, 31 time zones1

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

Watches with module 5398

14 models in 1 family share module 5398, so they share its battery, functions and manual[2].

Casio operation guide 5398 (PDF) ↗
  • GA-40014 modelsGA-400 · GA-400A · GA-400BY · GA-400CC · GA-400CM · GA-400CS · GA-400CX · GA-400GB · GA-400GBX · GA-400HR · GA-400LY · GA-400PC · GA-400SK · GA-400WG

Running the Casio 5398

Accuracy and battery figures for the Casio 5398, as Casio prints them.

Accuracy (maker)
±15 s/month1
Battery life
3 years1

Battery for the Casio 5398

  • SR927SW × 2[1]Sizes and equivalents of the SR927SW on its page

All Casio 5398 figures

Every figure we hold for the Casio 5398, with its source. Where sources disagree, each value is shown.

Accuracy and care

Accuracy (maker)
±15 s/month1

Power

Power source
battery1
Battery
2 × SR927SW1
Battery life
3 years1

Module functions

Display
analog-digital1derived
Light
LED, selectable duration, auto light switch1
Alarms
5 daily alarms (4 one-time, 1 snooze), hourly time signal1
Countdown timer
up to 60 minutes, 1-minute steps1
Stopwatch
1/100 s; capacity 23:59'59.991
World time
48 cities, 31 time zones1

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 5398 questions

Where is the manual for Casio module 5398?

Casio publishes the operation guide for module 5398 as a PDF: Casio operation guide 5398. The number 5398 is stamped on the case back of every watch built on it.

What battery does the Casio module 5398 take?

The Casio module 5398 takes 2 × SR927SW; Casio gives 3 years of life.

Source [1]

Which watches use Casio module 5398?

14 Casio models in Casio’s manual search use module 5398, in the GA-400 family.

More on movements

Sources

Documents checked · Report a wrong number

  1. 1Casio Computer Co., Ltd. — Operation guide, module 5398 (qw5398_EN.pdf) · pdf · read
  2. 2Casio Computer Co., Ltd. — Watch manual search JSON (US locale), manual_search.support.json · json · read