Seiko Cal. 3866 - 429

The Seiko 3866-429 represents an important milestone in Seiko's 1976 lineup. With its 21mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-74456dc8324c]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Champagne

Jewels

18j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1976

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