Seiko Cal. 4590 - 871

This Spring Drive model from 1993 features a 40mm Hardlex-Coated Steel case. Powered by the 4590 caliber with 36j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-6c60edbe62b7]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1993

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