What are the case specifications of the Seiko?

The Seiko features a 42mm diameter, 13.4mm thick, Steel 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 caliber 5M84.

Seiko SRN051

Steel

Ref. SRN051

Case size: 42mmMovement: 5M84

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Last updated 8 Oct 2026Suggest a correction

TECHNICAL SPECIFICATIONS

GENERAL

Gender

Men

CASE

Diameter

42mm

Thickness

13.4mm

Lug Width

20mm

Case Material

Steel

Water Resistance

100m

Crystal

Mineral Glass

MOVEMENT

Caliber

5M84

Jewels

6 jewels

BRACELET/STRAP

Bracelet/Strap

Leather

FEATURES & COMPLICATIONS

Display back

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QUICK FACTS

BRAND

Seiko

REFERENCE

SRN051

CALIBER

5M84

CASE MATERIAL

Steel

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 SRN051

TECHNICAL SPECIFICATIONS

GENERAL

CASE

MOVEMENT

BRACELET/STRAP

FEATURES & COMPLICATIONS

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SRN049

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QUICK FACTS

FOR WATCH DEALERS