Seiko Cal. 6156 - 698

The Seiko 6156-698 represents an important milestone in Seiko's 1971 lineup. With its 21mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-c61afc50863d]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1971

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