Seiko Cal. 5621 - 752

This Spring Drive model from 1999 features a 39mm Hardlex-Coated Steel case. Powered by the 5621 caliber with 29j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-944ca2eec10d]

Also known as: UFO, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1999

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