Seiko Cal. 3811 - 631

Seiko 3811-631

This Hand-Winding model from 1984 features a 38mm Hardlex-Coated Steel case. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-5e3740802bd0]

Also known as: Sumo

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
13.8mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
170m
Dial Color
White
Jewels
19j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1984

Related Models

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