Seiko Cal. 0787 - 640

This Quartz model from 1971 features a 39mm Hardlex-Coated Steel case. Powered by the 0787 caliber with 23j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-f7cc27deb61f]

Also known as: Shogun, Silverwave

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1971

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