Seiko Cal. 5651 - 820

The Seiko 5651-820 represents an important milestone in Seiko's 1975 lineup. It features a Black dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-8295b2532066]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1975

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