Seiko Cal. 4539 - 503

The Seiko 4539-503 represents an important milestone in Seiko's 1985 lineup. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-b56bbb532ff8]

Also known as: Sumo, Navigator

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1985

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