Seiko Cal. 4487 - 593

The Seiko 4487-593 represents an important milestone in Seiko's 1975 lineup. Powered by the 4487 caliber with 32j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-448a5fe84885]

Also known as: Shogun, Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

32j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1975

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