Seiko Cal. 7131 - 627

This Hand-Winding model from 1972 features a 46mm Stainless Steel case. It features a White dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-2750b7b5b347]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1972

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