Seiko Cal. 6181 - 404

The Seiko 6181-404 represents an important milestone in Seiko's 1977 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-bf7ca7aa5393]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1977

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