Seiko Cal. 6631 - 401

The Seiko 6631-401 represents an important milestone in Seiko's 1972 lineup. It features a Silver dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-8f1e91376404]

Also known as: Panda, Rally

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1972

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