Seiko Cal. 7138 - 661

The 7138-661 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-b1a741263677]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1979

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