Seiko Cal. 5646 - 164

The Seiko 5646-164 represents an important milestone in Seiko's 1987 lineup. It features a Black dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-8c7db4881be2]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1987

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