Seiko Cal. 6197 - 491

The Seiko 6197-491 represents an important milestone in Seiko's 1970 lineup. Powered by the 6197 caliber with 21j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-960b0023cf3c]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1970

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