Seiko Cal. 6171 - 840

This Spring Drive model from 1972 features a 38mm Gold-Plated case. Powered by the 6171 caliber with 31j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-8848c8ff2fd6]

Also known as: Turtle, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1972

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