Seiko Cal. 3894 - 631

Seiko 3894-631

This Spring Drive model from 1968 features a 44mm Hardlex-Coated Steel case. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-9efc194d50c3]

Also known as: Sumo, Arnie

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
13.2mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
110m
Dial Color
Black
Jewels
23j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1968

Related Models

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