Seiko Cal. 5231 - 418

This Hand-Winding model from 1988 features a 44mm Gold-Plated case. It features a Black dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-b72afb212e8a]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1988

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