Seiko Cal. 6613 - 550

This Automatic model from 1978 features a 39mm PVD Black case. Powered by the 6613 caliber with 22j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-a034a0f1cfa4]

Also known as: Rally, Silverwave

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1978

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