Seiko Cal. 6657 - 654

The 6657-654 is a sought-after Automatic piece from Seiko's golden era. With its 18mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-50e2d87ca6fb]

Also known as: UFO, World Timer

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1984

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