Seiko Cal. 7161 - 109

The Seiko 7161-109 represents an important milestone in Seiko's 1979 lineup. With its 20mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-de5183ad825e]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

35j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1979

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