Seiko Cal. 5631 - 875

The Seiko 5631-875 represents an important milestone in Seiko's 1983 lineup. It features a Navy dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-d6b7a1ce979b]

Also known as: Bellmatic, Emperor

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1983

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