Seiko Cal. 6642 - 340

This Hand-Winding model from 1973 features a 42mm Two-Tone case. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-d9dfcd5ef10a]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1973

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