Seiko Cal. 6671 - 621

The Seiko 6671-621 represents an important milestone in Seiko's 1990 lineup. With its 20mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-88f4bdee297d]

Also known as: Monster, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1990

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