Seiko Cal. 6181 - 655

The Seiko 6181-655 represents an important milestone in Seiko's 1975 lineup. Powered by the 6181 caliber with 29j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-64c36baf5720]

Also known as: Helmet, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1975

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