Seiko Cal. 6394 - 637

The 6394-637 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-55b34efd67cf]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1970

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