Seiko Cal. 6399 - 779

Released in 1991, the Cal. 6399 with design code 779 was part of Seiko's domestic market collection. Powered by the 6399 caliber with 25j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-be293df290d3]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1991

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