Seiko Cal. 6650 - 670

The Seiko 6650-670 represents an important milestone in Seiko's 1977 lineup. It features a Black dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-04e685fb9fb8]

Also known as: Sumo, Goldfeather

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1977

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