Seiko Cal. 6388 - 687

The Seiko 6388-687 represents an important milestone in Seiko's 1978 lineup. With its 19mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-a4b443a22c10]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Champagne

Jewels

27j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1978

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