Seiko Cal. 5633 - 621

The 5633-621 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-670b8667dd62]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1976

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