Seiko Cal. 6397 - 484

The 6397-484 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6397 caliber with 21j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-381af0178d2a]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1992

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