Seiko Cal. 6392 - 890

This Spring Drive model from 1972 features a 46mm Hardlex-Coated Steel case. Powered by the 6392 caliber with 19j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-6ac974851f92]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1972

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