Seiko Cal. 4438 - 648

The 4438-648 is a sought-after Kinetic piece from Seiko's golden era. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-be94cbff359f]

Also known as: UFO, Silverwave

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1980

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