Seiko Cal. 6388 - 739

The Seiko 6388-739 represents an important milestone in Seiko's 1975 lineup. With its 18mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-94277f6ff0ce]

Also known as: World Timer, Crown

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1975

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