Seiko Cal. 6388 - 634

The 6388-634 is a sought-after Solar piece from Seiko's golden era. Powered by the 6388 caliber with 29j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-c37f2a6e39f5]

Also known as: Shogun, Golden Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1977

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