Seiko Cal. 6613 - 359

The Seiko 6613-359 represents an important milestone in Seiko's 1984 lineup. With its 19mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-63412728f5ad]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1984

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