Seiko Cal. 6399 - 555

This Spring Drive model from 1972 features a 44mm Stainless Steel case. With its 21mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-85eb5d23db63]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1972

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