Seiko Cal. 5665 - 427

The Seiko 5665-427 represents an important milestone in Seiko's 1982 lineup. With its 22mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-0a304a347270]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

20j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1982

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