Seiko Cal. 6321 - 375

The 6321-375 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6321 caliber with 36j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-df8fdd3bc2f8]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1971

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