Seiko Cal. 6658 - 397

This Spring Drive model from 1970 features a 35mm Two-Tone case. With its 18mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-9f482bbef1cf]

Also known as: Samurai, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1970

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