Seiko Cal. 6378 - 679

The 6378-679 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-8f3b393480c9]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1980

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