Seiko Cal. 5646 - 422

The Seiko 5646-422 represents an important milestone in Seiko's 1988 lineup. It features a Champagne dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-d10a2b072117]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Champagne

Jewels

22j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1988

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