Seiko Cal. 6618 - 673

The Seiko 6618-673 represents an important milestone in Seiko's 1981 lineup. With its 21mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-866ed800abf3]

Also known as: UFO, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1981

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