Seiko Cal. 6613 - 642

The Seiko 6613-642 represents an important milestone in Seiko's 1980 lineup. Powered by the 6613 caliber with 28j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-8ea937039a68]

Also known as: Rally, Navigator

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1980

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