Seiko Cal. 6378 - 580

The 6378-580 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-5128c8932fc2]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1966

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