Seiko Cal. 6399 - 777

The 6399-777 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-872ffae37880]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1974

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