Seiko Cal. 5662 - 312

The Seiko 5662-312 represents an important milestone in Seiko's 1973 lineup. It features a Navy dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-79a25015df3c]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1973

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