Seiko Cal. 7156 - 667

The Seiko 7156-667 represents an important milestone in Seiko's 1978 lineup. Powered by the 7156 caliber with 21j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-f96e6f459ff0]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1978

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