Seiko Cal. 6633 - 393

The Seiko 6633-393 represents an important milestone in Seiko's 1965 lineup. It features a Navy dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-bf7eab9becbb]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1965

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