Seiko Cal. 6181 - 931

The Seiko 6181-931 represents an important milestone in Seiko's 1969 lineup. Powered by the 6181 caliber with 19j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-caf4e69bfc93]

Also known as: Samurai, Crown

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1969

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