Seiko Cal. 3878 - 819

Seiko 3878-819

This Solar model from 1978 features a 45mm Hardlex-Coated Steel case. With its 19mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-f35f790e2d0d]

Also known as: Tuna, Helmet

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
14.3mm
Lug Width
19mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
140m
Dial Color
Silver
Jewels
25j
Frequency
28,800 bph
Power Reserve
45 hours
Year
1978

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