Seiko Cal. 6399 - 108

The Seiko 6399-108 represents an important milestone in Seiko's 1988 lineup. Powered by the 6399 caliber with 34j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-7ac7cf92ab22]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1988

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