Seiko Cal. 6658 - 315

This Spring Drive model from 1965 features a 40mm Gold-Plated case. With its 19mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-ea1a0f2c4c17]

Also known as: Turtle, Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1965

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