Seiko Cal. 6657 - 530

The 6657-530 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6657 caliber with 22j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-259f600363ac]

Also known as: Tuna, Navigator

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1971

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