Seiko Cal. 4521 - 556

Seiko 4521-556

The Seiko 4521-556 represents an important milestone in Seiko's 1978 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-503cc2348f92]

Also known as: Turtle, UFO

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
10.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Cream
Jewels
21j
Frequency
28,800 bph
Power Reserve
57 hours
Year
1978

Related Models

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