Seiko Cal. 7031 - 677

This Hand-Winding model from 1982 features a 37mm Stainless Steel case. It features a White dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-9280d092dbfe]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1982

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