Seiko Cal. 6613 - 616

This Hand-Winding model from 1971 features a 43mm PVD Black case. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-8f52849d2dc8]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1971

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