Seiko Cal. 7156 - 178

This Automatic model from 1967 features a 40mm Hardlex-Coated Steel case. Powered by the 7156 caliber with 17j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-bf34a3cddf0a]

Also known as: Turtle, Silverwave

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1967

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