Seiko Cal. 5667 - 421

The Seiko 5667-421 represents an important milestone in Seiko's 1983 lineup. Powered by the 5667 caliber with 18j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-4c204fcdbb94]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Cream

Jewels

18j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1983

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