Seiko Cal. 6388 - 661

The 6388-661 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6388 caliber with 30j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-26a1d965a161]

Also known as: UFO, Silverwave

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Champagne

Jewels

30j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1983

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