Seiko Cal. 5677 - 356

This Solar model from 1973 features a 37mm PVD Black case. With its 18mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-75367f32d3e6]

Also known as: Sumo, Sea Horse

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Burgundy

Jewels

36j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1973

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