Seiko Cal. 5621 - 717

This Spring Drive model from 1986 features a 36mm Stainless Steel case. With its 19mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-9c457b258eea]

Also known as: UFO, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1986

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