Seiko Cal. 3880 - 991

Seiko 3880-991

The 3880-991 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-a1eea44f779c]

Also known as: Turtle, Shogun

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
39mm
Case Thickness
9.7mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Navy
Jewels
21j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1996

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