Seiko Cal. 3891 - 985

Seiko 3891-985

This Automatic model from 1975 features a 42mm Titanium case. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-f28b3830f7a2]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
42mm
Case Thickness
15.0mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
30m
Dial Color
White
Jewels
24j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1975

Related Models

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