Seiko Cal. 3870 - 666

The Seiko 3870-666 represents an important milestone in Seiko's 1973 lineup. With its 22mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-80e42c87d630]

Also known as: Samurai, Silverwave

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

28j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1973

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