Seiko Cal. 5613 - 581

The Seiko 5613-581 represents an important milestone in Seiko's 1967 lineup. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-316fc9579d1d]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1967

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