Seiko Cal. 5630 - 455

This Automatic model from 1977 features a 41mm Hardlex-Coated Steel case. It features a Green dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-4d77203ea260]

Also known as: Silverwave, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1977

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