Seiko Cal. 6378 - 917

This Spring Drive model from 1969 features a 40mm Two-Tone case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-2fa5b7375159]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Champagne

Jewels

30j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1969

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