Seiko Cal. 6635 - 390

Seiko 6635-390

This Solar model from 1974 features a 38mm Hardlex-Coated Steel case. With its 22mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-ff4e854e3c35]

Also known as: Baby Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
8.6mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
140m
Dial Color
Black
Jewels
28j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1974

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