Seiko Cal. 5665 - 204

The Seiko 5665-204 represents an important milestone in Seiko's 1981 lineup. With its 18mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-ceee73bc6179]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1981

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