Seiko Cal. 6399 - 779

The 6399-779 is a sought-after Solar piece from Seiko's golden era. Powered by the 6399 caliber with 33j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-a60a543c57b6]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1987

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