Seiko Cal. 4539 - 943

The Seiko 4539-943 represents an important milestone in Seiko's 1971 lineup. Powered by the 4539 caliber with 29j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-6c4d504210b2]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

29j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1971

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