Seiko Cal. 6613 - 826

The Seiko 6613-826 represents an important milestone in Seiko's 1965 lineup. Powered by the 6613 caliber with 24j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-cf75aa383eea]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1965

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