Seiko Cal. 4556 - 601

This Spring Drive model from 1987 features a 43mm Stainless Steel case. With its 21mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-713e98a2d006]

Also known as: Turtle, Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1987

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