Seiko Cal. 6620 - 869

The 6620-869 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6620 caliber with 26j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-707fe380c6ef]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1991

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