Seiko Cal. 5631 - 176

The Seiko 5631-176 represents an important milestone in Seiko's 1969 lineup. It features a Cream dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-461eaf7b9975]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1969

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