Seiko Cal. 6390 - 751

This Spring Drive model from 1977 features a 42mm Two-Tone case. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-7b7e0ef59144]

Also known as: Rally, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1977

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