Seiko Cal. 7021 - 657

The Seiko 7021-657 represents an important milestone in Seiko's 1987 lineup. With its 21mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-929e61c6d12c]

Also known as: Rally, Silverwave

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1987

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