What are the case specifications of the Seiko?

The Seiko features a 41mm diameter, 12.3mm thick case with a mineral glass crystal.

What is the water resistance of the Seiko?

The Seiko has a water resistance rating of 100m (swimming).

What movement does the Seiko use?

The Seiko is powered by a Quartz, caliber 8T63.

Seiko SSB401

Quartz

Ref. SSB401

Case size: 41mmMovement: 8T63

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Last updated 8 Oct 2026Suggest a correction

TECHNICAL SPECIFICATIONS

GENERAL

Gender

Men

CASE

Diameter

41mm

Thickness

12.3mm

Lug to Lug

48mm

Lug Width

22mm

Water Resistance

100m

Crystal

Mineral Glass

MOVEMENT

Movement Type

Quartz

Caliber

8T63

BRACELET/STRAP

Bracelet/Strap

Textile

FEATURES & COMPLICATIONS

ChronographDateLuminous handsLuminous indicesSmall seconds

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QUICK FACTS

BRAND

Seiko

REFERENCE

SSB401

MOVEMENT

Quartz

CALIBER

8T63

CRYSTAL

Mineral Glass

WATER RESISTANCE

100m (swimming)

GENDER

Men

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Last updated 8 Oct 2026Suggest a correction

FOR WATCH DEALERS

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Seiko SSB401

TECHNICAL SPECIFICATIONS

GENERAL

CASE

MOVEMENT

BRACELET/STRAP

FEATURES & COMPLICATIONS

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FOR WATCH DEALERS