Seiko Cal. 4438 - 163

The Seiko 4438-163 represents an important milestone in Seiko's 1971 lineup. It features a White dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-bd93e418fbd5]

Also known as: Silverwave, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1971

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