Seiko Cal. 5661 - 425

This Hand-Winding model from 1985 features a 46mm Hardlex-Coated Steel case. With its 22mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-edcdd733aa35]

Also known as: Sumo, Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1985

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