Seiko Cal. 6620 - 197

The 6620-197 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6620 caliber with 28j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-c1283fa2d67f]

Also known as: Shogun, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1965

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