Seiko Cal. 5673 - 864

The Seiko 5673-864 represents an important milestone in Seiko's 1979 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-a6a055549cab]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1979

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