Seiko Cal. 3891 - 688

Seiko 3891-688

The Seiko 3891-688 represents an important milestone in Seiko's 1977 lineup. The Fixed bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-3a1e45e2e523]

Also known as: Samurai, Monster

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
14.4mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
80m
Dial Color
Navy
Jewels
20j
Frequency
21,600 bph
Power Reserve
60 hours
Year
1977

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