Seiko Cal. 6397 - 423

This Solar model from 1970 features a 41mm PVD Black case. Powered by the 6397 caliber with 27j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-a032bee479ee]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1970

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