Seiko Cal. 3813 - 828

Seiko 3813-828

This Hand-Winding model from 1982 features a 37mm Titanium case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-c5a46980b514]

Also known as: Helmet, Flighty

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
37mm
Case Thickness
9.8mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Green
Jewels
22j
Frequency
28,800 bph
Power Reserve
44 hours
Year
1982

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seikata-wm-c5a46980b514