Seiko Cal. 3891 - 621

Seiko 3891-621

This Solar model from 1976 features a 35mm Hardlex-Coated Steel case. With its 20mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-f064c16c3e5d]

Also known as: Turtle, Baby Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
14.9mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Blue Sunburst
Jewels
35j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1976

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