Seiko Cal. 7091 - 739

The 7091-739 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-7d81c6e152b5]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1978

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