Seiko Cal. 6399 - 321

The Seiko 6399-321 represents an important milestone in Seiko's 1985 lineup. With its 20mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-f6a2a3a8ae97]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1985

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