Seiko Cal. 7138 - 783

The Seiko 7138-783 represents an important milestone in Seiko's 1980 lineup. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-d6f9ae14bf16]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1980

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