Seiko Cal. 5656 - 521

This Automatic model from 1979 features a 42mm Hardlex-Coated Steel case. It features a Cream dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-14f96387bca4]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1979

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