Seiko Cal. 5611 - 965

The Seiko 5611-965 represents an important milestone in Seiko's 1980 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-7edee26eb1b3]

Also known as: Sumo, Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1980

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