Seiko Cal. 5663 - 428

The 5663-428 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-d4ff883d006e]

Also known as: Rally, Crown

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1975

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