Seiko Cal. 5631 - 555

The Seiko 5631-555 represents an important milestone in Seiko's 1998 lineup. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-e34ba7416d61]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1998

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