Seiko Cal. 3877 - 694

Seiko 3877-694

This Hand-Winding model from 1973 features a 41mm Hardlex-Coated Steel case. With its 20mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-e4a41a9e468e]

Also known as: Monster, Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
13.7mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Burgundy
Jewels
19j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1973

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