Seiko Cal. 6657 - 806

The Seiko 6657-806 represents an important milestone in Seiko's 1978 lineup. Powered by the 6657 caliber with 18j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-501f7945f8eb]

Also known as: Panda, Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1978

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