Seiko Cal. 6391 - 820

Seiko 6391-820

This Solar model from 1969 features a 37mm Hardlex-Coated Steel case. With its 20mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-5ada36b3a031]

Also known as: Bellmatic, Sea Horse

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
12.4mm
Lug Width
20mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
70m
Dial Color
Silver
Jewels
36j
Frequency
36,000 bph
Power Reserve
69 hours
Year
1969

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seikata-wm-5ada36b3a031