Seiko Cal. 0731 - 511

Released in 1987, the Cal. 0731 with design code 511 was part of Seiko's domestic market collection. It features a Green dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-fc5295b56560]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1987

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