Seiko Cal. 6388 - 256

The 6388-256 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-ddc8bfd5090a]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1977

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