Seiko Cal. 6621 - 702

This Spring Drive model from 1970 features a 40mm Two-Tone case. With its 18mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-2aae952d13c4]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

35j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1970

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