Seiko Cal. 6320 - 406

The 6320-406 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6320 caliber with 22j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-8e306e7b1fcb]

Also known as: Helmet, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1992

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