Seiko Cal. 7181 - 525

The 7181-525 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7181 caliber with 22j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-49a0ebbe3fad]

Also known as: Shogun, Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1977

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