Seiko Cal. 6398 - 143

This Automatic model from 1972 features a 37mm Hardlex-Coated Steel case. Powered by the 6398 caliber with 30j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-566ffd91b2db]

Also known as: UFO, Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1972

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