Seiko Cal. 0763 - 198

The Seiko 0763-198 represents an important milestone in Seiko's 1978 lineup. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-4d9ed4219bf3]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Champagne

Jewels

36j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1978

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