Seiko Cal. 3817 - 121

This Kinetic model from 1967 features a 42mm PVD Black case. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-4f4972b47d28]

Also known as: Helmet, Rally

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1967

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