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Round stainless steel watch with grey dial and analog-digital display

CASIO

CASIO Edifice ECB-30DC-1B Grey Dial Analog Digital 100m Watch

SKU CH-MS9K-NMAR9

Bluetooth-connected analog-digital sports watch with 100 m water resistance and stainless steel bracelet

  • Watch movementQuartz
  • Product shapeRound
  • Watch face colorGrey
  • Dial markingsIndex
  • Display typeAnalog and Digital
  • Date displayDate
  • Bluetooth smartphone link keeps time and settings in sync
  • 100 m water resistance suits swimming and daily wear
  • Grey dial with analog and digital display shows day and date
  • Stainless steel case and bracelet with deployment clasp for secure fit
  • 70 mm case thickness houses quartz movement and mineral crystal

What the ECB-30DC-1B is and who it suits

The Casio Edifice ECB-30DC-1B is a stainless-steel sports watch with a 48.70 mm case, grey dial and combined analog-digital display. Quartz movement powers timekeeping, day and date windows, plus a Bluetooth link to a smartphone app for automatic time correction and world-time management. Water resistance to 100m makes it suitable for swimming and daily wear.

Check your phone and wrist before ordering

The Mobile Link feature requires a compatible smartphone running the Casio Watch app; verify that your device supports the necessary Bluetooth profile. The 48.70 mm case diameter and solid stainless-steel bracelet add noticeable weight, so confirm the proportions suit your wrist size and that the deployment clasp can be adjusted for a secure fit.

Behaviour during extended daily use

Quartz regulation keeps long-term accuracy within seconds per month, while the Bluetooth sync corrects drift whenever the phone is in range. Mineral crystal resists everyday scratches, and the 100m seal maintains integrity through repeated temperature changes and water exposure. The stainless-steel bracelet and fixed bezel show minimal cosmetic wear over months of continuous wear.

How it compares

Measured against everything we stock in Analog & Digital Wristwatches, at today’s prices. Recalculated every night.

Price $133.99
Typical for this category: the median of 2,679 items is $130.99.

Specifications

Product
Brand nameCASIO
Design styleSports
Watch face colorGrey
Item conditionNew
Display
Display typeAnalog and Digital
Size & build
Main materialStainless Steel
Product shapeRound
Strap materialStainless Steel
Closure typeDeployment Clasp
Bezel typeFixed Bezel
Housing materialStainless Steel
Case size48.7 mm
Watch glassMineral Crystal
Environment & compliance
Water resistance100m
More details
Watch movementQuartz
Dial markingsIndex
Date displayDate
Suitable forMale

Questions about this item

Does the ECB-30DC-1B include a charging cable or does it run on a standard battery?

The watch uses a quartz movement powered by a standard battery; no charging cable is required or included.

Should I choose the 100 m water-resistant model for swimming or is a lower rating sufficient?

At 100 m water resistance the watch is suitable for swimming and snorkelling, not just splashes.

How does the 48.70 mm case thickness feel on a typical wrist?

The 48.70 mm case gives a substantial presence that sits securely on most wrists without feeling bulky.

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