Seiko Cal. 4538 - 168

The 4538-168 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4538 caliber with 20j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-36cafd6c977d]

Also known as: UFO, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1981

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