Seiko Cal. 6671 - 816

Released in 1968, the Cal. 6671 with design code 816 was part of Seiko's domestic market collection. With its 21mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-9e82fd672cbe]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1968

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