Seiko Cal. 4538 - 604

The Seiko 4538-604 represents an important milestone in Seiko's 1970 lineup. Powered by the 4538 caliber with 35j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-ba120d9e70ca]

Also known as: UFO, Arnie

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

35j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1970

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