Seiko Cal. 6671 - 138

The Seiko 6671-138 represents an important milestone in Seiko's 1976 lineup. Powered by the 6671 caliber with 21j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-3d5adc6652c9]

Also known as: Silverwave

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

43mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1976

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