Seiko Cal. 5631 - 682

The Seiko 5631-682 represents an important milestone in Seiko's 1990 lineup. It features a Green dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-0542a8a2a5c4]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1990

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