Seiko Cal. 7186 - 109

The 7186-109 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-297b30be33ec]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1979

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