Seiko Cal. 0781 - 105

The Seiko 0781-105 represents an important milestone in Seiko's 1971 lineup. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-010dcf29b0e7]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1971

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