Seiko Cal. 6388 - 478

The Seiko 6388-478 represents an important milestone in Seiko's 1976 lineup. It features a Green dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-e85f84ce1fde]

Also known as: Bullhead, Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1976

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