Seiko Cal. 6399 - 508

This Spring Drive model from 1982 features a 39mm PVD Black case. Powered by the 6399 caliber with 34j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-0d97c3a30c01]

Also known as: Bullhead, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1982

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