Seiko Cal. 5681 - 100

The Seiko 5681-100 represents an important milestone in Seiko's 1991 lineup. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-d02ea8a3868f]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1991

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