Seiko Cal. 3861 - 591

Seiko 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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