Seiko Cal. 4587 - 312

The Seiko 4587-312 represents an important milestone in Seiko's 1970 lineup. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-ba0061cb1b16]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1970

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