Seiko Cal. 6677 - 771

The Seiko 6677-771 represents an important milestone in Seiko's 1971 lineup. Powered by the 6677 caliber with 19j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-c03e16d6c2d6]

Also known as: Bellmatic, Navigator

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

19j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1971

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