Seiko Cal. 5631 - 311

The Seiko 5631-311 represents an important milestone in Seiko's 1999 lineup. It features a White dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-7ca331324690]

Also known as: Silverwave

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1999

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