Seiko Cal. 3894 - 840

Seiko 3894-840

This Automatic model from 1980 features a 38mm Hardlex-Coated Steel case. With its 20mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-516b47800a19]

Also known as: Sumo, Baby Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
13.2mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
100m
Dial Color
Black
Jewels
19j
Frequency
36,000 bph
Power Reserve
55 hours
Year
1980

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