Seiko Cal. 6658 - 579

The 6658-579 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6658 caliber with 23j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-d3711e77e504]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1972

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