Seiko Cal. 6661 - 973

This Automatic model from 1978 features a 36mm PVD Black case. Powered by the 6661 caliber with 28j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-bdc20fb47e2b]

Also known as: Shogun, Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1978

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