Seiko Cal. 6387 - 493

This Kinetic model from 1969 features a 37mm Hardlex-Coated Steel case. Powered by the 6387 caliber with 21j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-f4ec2849f60d]

Also known as: Sumo, Helmet

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1969

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