Seiko Cal. 5613 - 761

This Hand-Winding model from 1970 features a 37mm PVD Black case. Powered by the 5613 caliber with 29j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-0de770734898]

Also known as: Goldfeather

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1970

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