Seiko Cal. 6650 - 683

The Seiko 6650-683 represents an important milestone in Seiko's 1968 lineup. With its 18mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-29e938ac86af]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1968

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