Seiko Cal. 6399 - 738

The Seiko 6399-738 represents an important milestone in Seiko's 1973 lineup. With its 21mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-056e73a8eb24]

Also known as: Bellmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1973

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