Seiko Cal. 5633 - 256

This Quartz model from 1967 features a 42mm Hardlex-Coated Steel case. It features a Navy dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-5647f5e28334]

Also known as: Rally, Crown

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1967

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