Seiko Cal. 4591 - 535

The Seiko 4591-535 represents an important milestone in Seiko's 1965 lineup. Powered by the 4591 caliber with 34j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-10f73bbba18f]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Green

Jewels

34j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1965

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