Watch Catalog

Casio Edifice EFK-100CD-1A

Silver, 43.5 × 39.0 mm, module 5755.

  • Module 5755
  • 43.5 × 39.0 mm
  • 100 m
  • Sapphire Crystal
  • $300

Specifications

Module
Casio module 5755, quartz · how to set it
Accuracy
Mean daily rate: -35 to +45 seconds
Case size
43.5 × 39.0 mm (length × width)
Thickness
12.5 mm
Case
Stainless steel
Crystal
Sapphire Crystal
Water resistance
100 m
Weight
148 g
Strap
Stainless Steel Band
Colour
Silver
Features
Date display, Hacking function, Magnetic Resistant, Number of jewels: 24, Run time, Vibrations: 21,600 vibrations per hour
Released
2025-07
Series
Casio Edifice

Questions

What module is in the Casio EFK-100CD-1A?

Module 5755, a quartz movement. The module number is engraved on the caseback, and Casio's operation manual is filed under it: the module page links the manual and lists every watch that shares it.

Does the Casio EFK-100CD-1A have a sapphire crystal?

Yes, the EFK-100CD-1A has a sapphire crystal.

How water resistant is the Casio EFK-100CD-1A?

100 m (10 bar). That covers swimming and snorkelling; it is not a diver's watch.