Seiko Cal. 5639 - 724

This Automatic model from 1984 features a 45mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-f4210745aa77]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1984

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