Seiko Cal. 6181 - 556

The Seiko 6181-556 represents an important milestone in Seiko's 1979 lineup. Powered by the 6181 caliber with 23j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-1676981254f7]

Also known as: Samurai, World Timer

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1979

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