Seiko Cal. 6628 - 597

The 6628-597 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6628 caliber with 26j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-5436bc91354e]

Also known as: Tuna, Pogue

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1970

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