Seiko Cal. 5677 - 121

This Hand-Winding model from 1981 features a 37mm Gold-Plated case. With its 18mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-91951d4da466]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1981

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