Seiko Cal. 6181 - 531

This Hand-Winding model from 1966 features a 41mm Two-Tone case. Powered by the 6181 caliber with 17j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-91ea5633cd17]

Also known as: Samurai, Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1966

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