Seiko Cal. 6647 - 871

Released in 1975, the Cal. 6647 with design code 871 was part of Seiko's domestic market collection. Powered by the 6647 caliber with 34j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-69bee346ea1b]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1975

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