Seiko Cal. 5628 - 708

The Seiko 5628-708 represents an important milestone in Seiko's 1991 lineup. With its 20mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-9100e7a2ea4e]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

34j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1991

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