Seiko Cal. 6388 - 450

Released in 1970, the Cal. 6388 with design code 450 was part of Seiko's domestic market collection. With its 21mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-fa01ba84da7e]

Also known as: Bullhead, Silverwave

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

26j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1970

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