Seiko Cal. 5664 - 327

The Seiko 5664-327 represents an important milestone in Seiko's 1982 lineup. It features a Black dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-cd3bfc9dfae7]

Also known as: Monster, Rally

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1982

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