Seiko Cal. 5631 - 814

The Seiko 5631-814 represents an important milestone in Seiko's 1999 lineup. It features a Navy dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-1d5101bde62c]

Also known as: Monster, Bellmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1999

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