Seiko Cal. 3821 - 380

Seiko 3821-380

This Spring Drive model from 1976 features a 43mm Hardlex-Coated Steel case. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-3a7579d29070]

Also known as: Monster, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
8.1mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
60m
Dial Color
Blue Sunburst
Jewels
32j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1976

Related Models

seikata-wm-3a7579d29070