Seiko Cal. 3880 - 357

Seiko 3880-357

The Seiko 3880-357 represents an important milestone in Seiko's 1976 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-bc317a839a07]

Also known as: Turtle, Sumo

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
8.4mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
120m
Dial Color
Blue Sunburst
Jewels
20j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1976

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