Seiko Cal. 6321 - 311

The 6321-311 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6321 caliber with 31j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-b4a30c85ed66]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1989

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