Seiko Cal. 6321 - 757

The 6321-757 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6321 caliber with 20j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-364ad6e796f0]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1982

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