Seiko Cal. 5616 - 790

The Seiko 5616-790 represents an important milestone in Seiko's 1981 lineup. Powered by the 5616 caliber with 17j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-ebfdd0eb76b9]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1981

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