Seiko Cal. 6399 - 778

The 6399-778 is a sought-after Solar piece from Seiko's golden era. Powered by the 6399 caliber with 34j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-c9112c6af7d1]

Also known as: UFO, World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1983

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