Seiko Cal. 3861 - 591

This Spring Drive model from 1975 features a 38mm Hardlex-Coated Steel case. With its 21mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-a679809767f5]

Also known as: Panda, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1975

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