Seiko Cal. 0731 - 743

The Seiko 0731-743 represents an important milestone in Seiko's 1980 lineup. It features a Green dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-51a479fd71c9]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1980

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