Seiko Cal. 3818 - 557

The Seiko 3818-557 represents an important milestone in Seiko's 1987 lineup. It features a White dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-4ac64a4b2668]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

White

Jewels

29j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1987

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