Seiko Cal. 4478 - 309

Seiko 4478-309

The Seiko 4478-309 represents an important milestone in Seiko's 1981 lineup. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-6ffc41048f66]

Also known as: Turtle, Sea Horse

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
10.6mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Silver
Jewels
29j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1981

Related Models

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