Seiko Cal. 7181 - 381

The 7181-381 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7181 caliber with 26j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-3ea1eeecd4c2]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1999

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