Seiko Cal. 6621 - 147

The 6621-147 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6621 caliber with 28j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-757fa942371e]

Also known as: Monster, Goldfeather

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1990

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