Seiko Cal. 4551 - 508

This Spring Drive model from 1968 features a 36mm Hardlex-Coated Steel case. It features a Silver dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-c957ca1a464c]

Also known as: Tuna, Pogue

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1968

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