Seiko Cal. 5683 - 646

The Seiko 5683-646 represents an important milestone in Seiko's 1977 lineup. With its 20mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-b74ea56e11b2]

Also known as: UFO, Crown

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1977

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