Seiko Cal. 6659 - 581

The Seiko 6659-581 represents an important milestone in Seiko's 1969 lineup. It features a White dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-4c35f7e688f1]

Also known as: Turtle, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1969

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