Seiko Cal. 6646 - 810

This Spring Drive model from 1974 features a 35mm Stainless Steel case. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-81f8802d1835]

Also known as: Bullhead, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1974

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