Seiko Cal. 6171 - 959

The Seiko 6171-959 represents an important milestone in Seiko's 1972 lineup. Powered by the 6171 caliber with 24j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-3ae912efea9e]

Also known as: Sumo, Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1972

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